# SDR AALA202607249249

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 20, 2026
- Submitted: July 24, 2026
- Operation: Air carrier
- Aircraft: [N772AN](https://openairdocs.org/aircraft/N772AN), registered now
- Make and model: Boeing 777223
- Aircraft serial: 29580
- Aircraft time: 103,998 hours, 13,503 cycles
- System (JASC): [3230 · Landing Gear Retraction/Extension System](https://openairdocs.org/jasc/3230)
- Part: Bypass Valve
- Condition: Inoperative
- Location: Zone 700
- Stage of operation: CL
- How discovered: V
- Nature of condition: O
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202607249249

## Discrepancy

AIRCRAFT WAS GROUNDED: FTER T/O THE LANDING GEAR HANDLE DID NOT GO UP. LOCK OVERRIDE DID NOT HELP. DECESION MADE TO DIVERT TO JFK, EMERGENCY DECLARED. ALL 3 GEAR REMAINED DOWN AND FIXED NORMAL WEIGHT LANDING AT JFK.  MAINTENACE REPLACED NLG SEL/BYPASS VALVE I.A.W M/M 32-31-02.

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