Aircraft N997NN Data
1
aircraft record found
N997NN
2016 Boeing 737-823, c/n 33250 l/n 6055
Latest photos of N997NN
Mark Pasqualino
@ KMCO
Mark Pasqualino
@ KMCO
Mark Pasqualino
@ KORD
Mark Pasqualino
@ KORD
Recent Routes
ON GROUND
American Airlines
| Time | Callsign | FL | Speed | Heading | Route |
|---|---|---|---|---|---|
| 2026-09-18 14:30 UTC | AAL2765 / AA2765 | — | 15 kt | 270° |
KAZ3 → ORD
KAZ3 →
ORD
KAZ3 → Chicago O'hare International Airport |
| 2026-09-18 03:20 UTC | AAL3137 / AA3137 | — | 1 kt | 267° |
ORD → PHX
ORD
→
PHX
Chicago O'hare International Airport → Phoenix Sky Harbor International Airport |
| 2026-09-17 21:52 UTC | AAL2363 / AA2363 | — | 19 kt | 90° |
ORD → DEN
ORD
→
DEN
Chicago O'hare International Airport → Denver International Airport |
| 2026-09-17 14:38 UTC | AAL1926 / AA1926 | — | 6 kt | 0° |
STL → ORD
STL
→
ORD
St Louis Lambert International Airport → Chicago O'hare International Airport |
| 2026-09-17 06:34 UTC | AA9999 / AA9999 | — | 0 kt | 152° | — |
| 2026-09-17 04:54 UTC | AAL459 / AA459 | — | 0 kt | 152° | — |
| 2026-09-17 00:42 UTC | AAL1577 / AA1577 | FL5 | 154 kt | 357° | — |
| 2026-09-16 20:36 UTC | AAL812 / AA812 | FL0 | 140 kt | 87° |
AUS → MIA
AUS
→
MIA
Austin-bergstrom International Airport → Miami International Airport |
| 2026-09-16 01:38 UTC | AAL2324 / AA2324 | — | 1 kt | 177° |
AUS → MIA
AUS
→
MIA
Austin-bergstrom International Airport → Miami International Airport |
| 2026-09-15 20:52 UTC | AAL3070 / AA3070 | — | 1 kt | 20° | — |
| 2026-09-15 16:48 UTC | AAL2497 / AA2497 | FL5 | 140 kt | 356° |
STL → CLT
STL
→
CLT
St Louis Lambert International Airport → Charlotte/douglas International Airport |
| 2026-09-15 11:10 UTC | AAL376 / AA376 | FL6 | 151 kt | 356° | — |
| 2026-09-15 00:42 UTC | AAL2676 / AA2676 | FL11 | 153 kt | 317° | — |
| 2026-09-14 21:52 UTC | AAL885 / AA885 | FL9 | 149 kt | 356° | — |
| 2026-09-14 18:40 UTC | AAL1140 / AA1140 | — | 3 kt | 132° | — |
| 2026-09-14 14:46 UTC | AAL1119 / AA1119 | FL7 | 152 kt | 355° | — |
| 2026-09-14 04:24 UTC | AAL3097 / AA3097 | FL9 | 140 kt | 132° | — |
| 2026-09-14 02:24 UTC | AAL1158 / AA1158 | — | 2 kt | 245° |
DCA → DFW
DCA
→
DFW
Ronald Reagan Washington Ntl Airport → Dallas-fort Worth International Airport |
| 2026-09-13 21:58 UTC | AAL2769 / AA2769 | — | 8 kt | 354° |
ORD → DCA
ORD
→
DCA
Chicago O'hare International Airport → Ronald Reagan Washington Ntl Airport |
| 2026-09-13 18:36 UTC | AAL2474 / AA2474 | FL7 | 155 kt | 270° |
KAZ3 → ORD
KAZ3 →
ORD
KAZ3 → Chicago O'hare International Airport |
| 2026-09-13 03:48 UTC | AAL1767 / AA1767 | — | 3 kt | 248° | — |
| 2026-09-12 22:00 UTC | AAL1637 / AA1637 | — | 10 kt | 267° |
DCA → ORD
DCA
→
ORD
Ronald Reagan Washington Ntl Airport → Chicago O'hare International Airport |
| 2026-09-12 18:32 UTC | AAL1595 / AA1595 | — | 4 kt | 338° |
MIA → DCA
MIA
→
DCA
Miami International Airport → Ronald Reagan Washington Ntl Airport |
| 2026-09-12 12:54 UTC | AAL2984 / AA2984 | — | 2 kt | 172° |
ORD → MIA
ORD
→
MIA
Chicago O'hare International Airport → Miami International Airport |
| 2026-09-12 04:06 UTC | AAL815 / AA815 | — | 10 kt | 0° | — |
| 2026-09-11 22:38 UTC | AAL874 / AA874 | FL8 | 156 kt | 176° | — |
| 2026-09-11 11:48 UTC | AAL1474 / AA1474 | FL9 | 148 kt | 176° | — |
| 2026-09-11 02:16 UTC | AAL2945 / AA2945 | FL0 | 157 kt | 90° |
ORD → SAN
ORD
→
SAN
Chicago O'hare International Airport → San Diego International Airport |
| 2026-09-10 11:50 UTC | AAL1834 / AA1834 | FL14 | 158 kt | 176° | — |
| 2026-09-10 02:52 UTC | AAL679 / AA679 | FL0 | 149 kt | 70° | — |
| 2026-09-09 23:38 UTC | AAL1871 / AA1871 | — | 4 kt | 256° |
SLC → DFW
SLC
→
DFW
Salt Lake City International Airport → Dallas-fort Worth International Airport |
| 2026-09-09 14:36 UTC | AAL1432 / AA1432 | — | 29 kt | 270° | — |
| 2026-09-08 18:52 UTC | AAL2868 / AA2868 | FL360 | 445 kt | 201° | — |
| 2026-09-08 15:50 UTC | AAL1412 / AA1412 | FL5 | 151 kt | 180° | — |
| 2026-09-08 01:44 UTC | AAL1666 / AA1666 | FL11 | 152 kt | 270° |
PHX → ONT
PHX
→
ONT
Phoenix Sky Harbor International Airport → Ontario International Airport |
| 2026-09-07 23:54 UTC | AAL2624 / AA2624 | — | 2 kt | 172° |
ORD → PHX
ORD
→
PHX
Chicago O'hare International Airport → Phoenix Sky Harbor International Airport |
| 2026-09-07 18:24 UTC | AAL1997 / AA1997 | — | 13 kt | 90° |
STL → ORD
STL
→
ORD
St Louis Lambert International Airport → Chicago O'hare International Airport |
| 2026-09-07 16:52 UTC | AAL2921 / AA2921 | FL7 | 143 kt | 44° | — |
| 2026-09-07 14:36 UTC | AAL997 / AA997 | — | 14 kt | 222° | — |
| 2026-09-07 06:06 UTC | AAL3186 / AA3186 | FL1 | 163 kt | 91° |
PHL → BOS
PHL
→
BOS
Philadelphia International Airport → General Edward Lawrence Logan International Airport |
| 2026-09-07 02:34 UTC | AAL1101 / AA1101 | — | 12 kt | 242° |
TPA → ORD
TPA
→
ORD
Tampa International Airport → Chicago O'hare International Airport |
| 2026-09-06 17:22 UTC | AAL2258 / AA2258 | — | 15 kt | 8° |
LAS → ORD
LAS
→
ORD
Harry Reid International Airport → Chicago O'hare International Airport |
| 2026-09-06 03:24 UTC | AAL3292 / AA3292 | — | 6 kt | 352° |
ORD → LAS
ORD
→
LAS
Chicago O'hare International Airport → Harry Reid International Airport |
| 2026-09-05 22:20 UTC | AAL835 / AA835 | — | 10 kt | 70° |
MIA → ORD
MIA
→
ORD
Miami International Airport → Chicago O'hare International Airport |
| 2026-09-05 17:56 UTC | AAL1989 / AA1989 | — | 17 kt | 87° |
PHL → MIA
PHL
→
MIA
Philadelphia International Airport → Miami International Airport |
| 2026-09-05 14:14 UTC | AAL2970 / AA2970 | — | 6 kt | 335° |
ORD → PHL
ORD
→
PHL
Chicago O'hare International Airport → Philadelphia International Airport |
| 2026-09-05 04:12 UTC | AAL2346 / AA2346 | — | 6 kt | 357° |
DFW → ORD
DFW
→
ORD
Dallas-fort Worth International Airport → Chicago O'hare International Airport |
| 2026-09-04 23:20 UTC | AAL2548 / AA2548 | — | 3 kt | 203° |
DFW → 73CL
DFW
→
73CL
Dallas-fort Worth International Airport → Julian Hinds Pump Plant Airstrip Airport |
| 2026-09-04 16:06 UTC | AAL2653 / AA2653 | — | 13 kt | 0° | — |
| 2026-09-04 07:22 UTC | AAL2958 / AA2958 | FL45 | 163 kt | 256° | — |
| 2026-09-04 02:20 UTC | AAL1367 / AA1367 | — | 5 kt | 259° |
DFW → BDL
DFW
→
BDL
Dallas-fort Worth International Airport → Bradley International Airport |
| 2026-09-03 17:08 UTC | AAL795 / AA795 | — | 5 kt | 236° |
DCA → DFW
DCA
→
DFW
Ronald Reagan Washington Ntl Airport → Dallas-fort Worth International Airport |
| 2026-09-03 12:56 UTC | AAL1618 / AA1618 | — | 6 kt | 219° |
DFW → DCA
DFW
→
DCA
Dallas-fort Worth International Airport → Ronald Reagan Washington Ntl Airport |
| 2026-09-03 02:02 UTC | AAL606 / AA606 | — | 1 kt | 301° |
JFK → DFW
JFK
→
DFW
John F Kennedy International Airport → Dallas-fort Worth International Airport |
| 2026-09-02 14:54 UTC | AAL99 / AA99 | — | 4 kt | 284° |
ABQ → DFW
ABQ
→
DFW
Albuquerque International Sunport Airport → Dallas-fort Worth International Airport |
| 2026-09-02 01:06 UTC | AAL2698 / AA2698 | — | 12 kt | 65° |
DFW → ABQ
DFW
→
ABQ
Dallas-fort Worth International Airport → Albuquerque International Sunport Airport |
| 2026-09-01 22:28 UTC | AAL2316 / AA2316 | — | 10 kt | 270° | — |
| 2026-09-01 15:52 UTC | AAL1374 / AA1374 | — | 15 kt | 270° | — |
| 2026-09-01 00:48 UTC | AAL2233 / AA2233 | — | 8 kt | 284° |
DFW → MEX
DFW
→
MEX
Dallas-fort Worth International Airport → Mexico City Benito Juárez International Airport |
| 2026-08-31 20:02 UTC | AAL390 / AA390 | — | 25 kt | 270° | — |
| 2026-08-31 16:10 UTC | AAL389 / AA389 | — | 15 kt | 239° |
DFW → MEX
DFW
→
MEX
Dallas-fort Worth International Airport → Mexico City Benito Juárez International Airport |
| 2026-08-31 11:58 UTC | AAL2272 / AA2272 | FL6 | 151 kt | 140° |
OKC → DFW
OKC
→
DFW
Okc Will Rogers International Airport → Dallas-fort Worth International Airport |
| 2026-08-31 03:42 UTC | AAL1458 / AA1458 | — | 0 kt | 56° |
DFW → OKC
DFW
→
OKC
Dallas-fort Worth International Airport → Okc Will Rogers International Airport |
| 2026-08-31 01:26 UTC | AAL2736 / AA2736 | — | 15 kt | 270° | — |
| 2026-08-30 17:44 UTC | AAL2610 / AA2610 | — | 0 kt | 90° | — |
| 2026-08-30 11:14 UTC | AAL656 / AA656 | — | 0 kt | 276° |
OKC → DFW
OKC
→
DFW
Okc Will Rogers International Airport → Dallas-fort Worth International Airport |
| 2026-08-30 03:38 UTC | AAL768 / AA768 | — | 3 kt | 0° | — |
| 2026-08-29 23:22 UTC | AAL351 / AA351 | FL16 | 150 kt | 356° | — |
| 2026-08-29 19:10 UTC | AAL350 / AA350 | FL370 | 452 kt | 139° | — |
| 2026-08-29 15:58 UTC | AAL1846 / AA1846 | FL15 | 153 kt | 356° | — |
| 2026-08-29 03:02 UTC | AAL1641 / AA1641 | FL13 | 132 kt | 359° | — |
| 2026-08-29 00:08 UTC | AAL2442 / AA2442 | FL12 | 148 kt | 176° |
BUF → CLT
BUF
→
CLT
Buffalo Niagara International Airport → Charlotte/douglas International Airport |
| 2026-08-28 19:46 UTC | AAL1724 / AA1724 | — | 16 kt | 225° |
DFW → BUF
DFW
→
BUF
Dallas-fort Worth International Airport → Buffalo Niagara International Airport |
| 2026-08-28 15:18 UTC | AAL1555 / AA1555 | — | 23 kt | 270° |
ORD → DFW
ORD
→
DFW
Chicago O'hare International Airport → Dallas-fort Worth International Airport |
| 2026-08-27 18:56 UTC | AAL1355 / AA1355 | — | 13 kt | 65° |
KAZ3 → ORD
KAZ3 →
ORD
KAZ3 → Chicago O'hare International Airport |
| 2026-08-26 21:26 UTC | AAL1437 / AA1437 | — | 2 kt | 98° |
PHX → RNO
PHX
→
RNO
Phoenix Sky Harbor International Airport → Reno/tahoe International Airport |
| 2026-08-26 16:10 UTC | AAL1958 / AA1958 | FL443 | 0 kt | 90° | — |
| 2026-08-25 23:42 UTC | AAL3330 / AA3330 | FL8 | 148 kt | 274° | — |
| 2026-08-25 21:26 UTC | AAL3208 / AA3208 | FL16 | 154 kt | 356° | — |
| 2026-08-25 00:00 UTC | AAL1258 / AA1258 | FL10 | 146 kt | 132° | — |
| 2026-08-24 20:00 UTC | AAL2297 / AA2297 | FL15 | 153 kt | 356° | — |
| 2026-08-24 17:00 UTC | AAL2768 / AA2768 | FL1 | 140 kt | 268° | — |
| 2026-08-24 13:42 UTC | AAL1444 / AA1444 | FL16 | 147 kt | 357° | — |
| 2026-08-24 00:58 UTC | AAL578 / AA578 | — | 12 kt | 354° |
DFW → JFK
DFW
→
JFK
Dallas-fort Worth International Airport → John F Kennedy International Airport |
| 2026-08-23 19:40 UTC | AAL1068 / AA1068 | FL7 | 126 kt | 180° |
CUN → DFW
CUN
→
DFW
Cancún International Airport → Dallas-fort Worth International Airport |
| 2026-08-23 16:02 UTC | AAL1190 / AA1190 | — | 3 kt | 304° |
DFW → CUN
DFW
→
CUN
Dallas-fort Worth International Airport → Cancún International Airport |
| 2026-08-23 12:20 UTC | AAL2770 / AA2770 | — | 12 kt | 0° |
ATL → DFW
ATL
→
DFW
Hartsfield/jackson Atlanta International Airport → Dallas-fort Worth International Airport |
| 2026-08-23 00:28 UTC | AAL2403 / AA2403 | — | 5 kt | 270° |
DFW → ATL
DFW
→
ATL
Dallas-fort Worth International Airport → Hartsfield/jackson Atlanta International Airport |
| 2026-08-22 20:56 UTC | AAL974 / AA974 | FL6 | 160 kt | 180° |
DCA → BDL
DCA
→
BDL
Ronald Reagan Washington Ntl Airport → Bradley International Airport |
| 2026-08-22 12:38 UTC | AAL2556 / AA2556 | — | 3 kt | 267° |
ORD → BNA
ORD
→
BNA
Chicago O'hare International Airport → Nashville International Airport |
| 2026-08-22 02:54 UTC | AAL680 / AA680 | FL12 | 146 kt | 92° | — |
| 2026-08-21 22:34 UTC | AAL2926 / AA2926 | — | 42 kt | 211° |
TUS → DFW
TUS
→
DFW
Tucson International Airport → Dallas-fort Worth International Airport |
| 2026-08-21 15:28 UTC | AAL1107 / AA1107 | FL6 | 156 kt | 180° | — |
| 2026-08-21 05:12 UTC | AAL1104 / AA1104 | FL31 | 159 kt | 295° | — |
| 2026-08-20 14:18 UTC | AAL482 / AA482 | FL5 | 144 kt | 180° | — |
| 2026-08-19 22:24 UTC | AAL2822 / AA2822 | FL8 | 160 kt | 208° | — |
| 2026-08-19 18:24 UTC | AAL3101 / AA3101 | — | 15 kt | 0° | — |
| 2026-08-19 02:46 UTC | AAL2238 / AA2238 | — | 14 kt | 0° |
LGA → DFW
LGA
→
DFW
Laguardia Airport → Dallas-fort Worth International Airport |
| 2026-08-18 21:46 UTC | AAL2030 / AA2030 | — | 1 kt | 20° |
LGA → BNA
LGA
→
BNA
Laguardia Airport → Nashville International Airport |
| 2026-08-18 14:20 UTC | AAL2925 / AA2925 | — | 6 kt | 56° |
DFW → LGA
DFW
→
LGA
Dallas-fort Worth International Airport → Laguardia Airport |
| 2026-08-18 05:32 UTC | AAL2092 / AA2092 | — | 18 kt | 270° |
LGA → DFW
LGA
→
DFW
Laguardia Airport → Dallas-fort Worth International Airport |
| 2026-08-18 00:08 UTC | AAL673 / AA673 | — | 0 kt | 20° |
ORD → LGA
ORD
→
LGA
Chicago O'hare International Airport → Laguardia Airport |
| 2026-08-17 20:38 UTC | AAL818 / AA818 | — | 3 kt | 323° |
TPA → ORD
TPA
→
ORD
Tampa International Airport → Chicago O'hare International Airport |
| 2026-08-17 16:30 UTC | AAL1990 / AA1990 | — | 10 kt | 3° |
TPA → DCA
TPA
→
DCA
Tampa International Airport → Ronald Reagan Washington Ntl Airport |
| 2026-08-17 13:10 UTC | AAL2745 / AA2745 | — | 12 kt | 326° |
MCO → DCA
MCO
→
DCA
Orlando International Airport → Ronald Reagan Washington Ntl Airport |
| 2026-08-17 02:16 UTC | AAL2139 / AA2139 | FL1 | 152 kt | 180° |
DCA → MCO
DCA
→
MCO
Ronald Reagan Washington Ntl Airport → Orlando International Airport |
| 2026-08-16 23:18 UTC | AAL2520 / AA2520 | — | 8 kt | 256° |
DFW → DCA
DFW
→
DCA
Dallas-fort Worth International Airport → Ronald Reagan Washington Ntl Airport |
| 2026-08-16 19:14 UTC | AAL2460 / AA2460 | FL4 | 8 kt | 270° | — |
| 2026-08-16 13:06 UTC | AAL3026 / AA3026 | — | 0 kt | 239° | — |
| 2026-08-16 00:08 UTC | AAL1386 / AA1386 | FL3 | 147 kt | 89° | — |
| 2026-08-15 20:56 UTC | AAL2740 / AA2740 | — | 20 kt | 270° | — |
| 2026-08-15 13:58 UTC | AAL2380 / AA2380 | — | 0 kt | 267° | — |
| 2026-08-14 21:58 UTC | AAL985 / AA985 | FL13 | 152 kt | 356° | — |
| 2026-08-14 18:00 UTC | AAL1301 / AA1301 | FL1 | 148 kt | 88° | — |
| 2026-08-14 15:08 UTC | AAL1300 / AA1300 | FL370 | 471 kt | 197° | — |
| 2026-08-14 12:30 UTC | AAL406 / AA406 | FL2 | 144 kt | 87° |
AUS → MIA
AUS
→
MIA
Austin-bergstrom International Airport → Miami International Airport |
| 2026-08-14 05:02 UTC | AAL1427 / AA1427 | — | 1 kt | 17° |
LGA → ORD
LGA
→
ORD
Laguardia Airport → Chicago O'hare International Airport |
| 2026-08-14 00:10 UTC | AAL973 / AA973 | FL2 | 155 kt | 119° |
DCA → MIA
DCA
→
MIA
Ronald Reagan Washington Ntl Airport → Miami International Airport |
| 2026-08-13 20:50 UTC | AAL789 / AA789 | — | 3 kt | 338° |
ORD → DCA
ORD
→
DCA
Chicago O'hare International Airport → Ronald Reagan Washington Ntl Airport |
| 2026-08-13 17:38 UTC | AAL2614 / AA2614 | — | 8 kt | 298° |
SFO → ORD
SFO
→
ORD
San Francisco International Airport → Chicago O'hare International Airport |
| 2026-08-13 03:40 UTC | AAL3141 / AA3141 | — | 6 kt | 236° |
ORD → SFO
ORD
→
SFO
Chicago O'hare International Airport → San Francisco International Airport |
| 2026-08-12 21:46 UTC | AAL1534 / AA1534 | — | 4 kt | 180° |
LGA → ORD
LGA
→
ORD
Laguardia Airport → Chicago O'hare International Airport |
| 2026-08-12 16:34 UTC | AAL2424 / AA2424 | — | 2 kt | 14° |
MIA → LGA
MIA
→
LGA
Miami International Airport → Laguardia Airport |
| 2026-08-12 12:22 UTC | AAL1183 / AA1183 | FL1 | 158 kt | 87° |
BWI → MIA
BWI
→
MIA
Baltimore/washington International Thurgood Marshall Airport → Miami International Airport |
| 2026-08-12 01:56 UTC | AAL3216 / AA3216 | FL2 | 152 kt | 324° |
MIA → BWI
MIA
→
BWI
Miami International Airport → Baltimore/washington International Thurgood Marshall Airport |
| 2026-08-11 21:06 UTC | AAL1338 / AA1338 | FL4 | 151 kt | 87° | — |
| 2026-08-11 15:16 UTC | AAL1377 / AA1377 | FL350 | 454 kt | 178° | — |
| 2026-08-11 12:46 UTC | AAL2313 / AA2313 | FL0 | 152 kt | 120° | — |
| 2026-08-10 23:36 UTC | AAL1953 / AA1953 | — | 8 kt | 79° |
JFK → DFW
JFK
→
DFW
John F Kennedy International Airport → Dallas-fort Worth International Airport |
| 2026-08-10 17:46 UTC | AAL374 / AA374 | — | 10 kt | 56° | — |
| 2026-08-10 14:38 UTC | AAL1065 / AA1065 | FL13 | 153 kt | 356° | — |
| 2026-08-09 23:46 UTC | AAL980 / AA980 | — | 12 kt | 290° |
LGA → BNA
LGA
→
BNA
Laguardia Airport → Nashville International Airport |
| 2026-08-09 19:46 UTC | AAL2249 / AA2249 | FL4 | 145 kt | 87° | — |
| 2026-08-09 14:38 UTC | AAL1347 / AA1347 | FL1 | 143 kt | 118° | — |
| 2026-08-09 00:12 UTC | AAL2935 / AA2935 | FL3 | 149 kt | 91° | — |
| 2026-08-08 15:30 UTC | AAL2725 / AA2725 | FL4 | 153 kt | 88° | — |
| 2026-08-08 02:22 UTC | AAL2393 / AA2393 | FL12 | 127 kt | 76° | — |
| 2026-08-07 21:04 UTC | AAL1124 / AA1124 | FL7 | 154 kt | 87° | — |
| 2026-08-07 17:18 UTC | AAL1125 / AA1125 | FL33 | 167 kt | 79° | — |
| 2026-08-07 12:34 UTC | AAL1252 / AA1252 | FL3 | 157 kt | 119° |
PHL → MIA
PHL
→
MIA
Philadelphia International Airport → Miami International Airport |
Live location data from OpenSky Network
Airframe Info
| Manufacturer | Boeing |
| Model | 737-823 Search all Boeing 737-823 |
| Year built | 2016 |
| Construction Number (C/N) | 33250 |
| Line Number (L/N) | 6055 |
| Aircraft Type | Fixed wing multi engine |
| Number of Seats | 160 |
| Number of Engines | 2 |
| Engine Type | Turbofan |
| Engine Manufacturer and Model | CFM CFM56-7B24E |
| Also Registered As |
|
Aircraft
| Registration Number | N997NN |
| Mode S (ICAO24) Code | adeddd |
| Certification Class | Standard |
| Certification Issued | 2016-09-02 |
| Air Worthiness Test | 2016-09-01 |
| Last Action Taken | 2023-09-02 |
| Current Status | Valid |
| Delivery Date | 2016-09-02 |
Owner
| Registration Type | Corporation |
| Owner | AMERICAN AIRLINES INC |
| Address |
Md 8b369 Fort Worth, TX 76155 United States |
| Region | Southwestern |