# SDR A4J2002F00001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 2, 2002
- Operation: Air carrier
- Aircraft: N932MJ
- Make and model: Doug DC-9-31
- Registry model: [Doug DC-9-31](https://openairdocs.org/model/douglas-dc-9-31) (OpenAirDocs)
- Aircraft serial: 48156
- Engine: Pwa JT8D9
- System (JASC): [3230 · Landing Gear Retraction/Extension System](https://openairdocs.org/jasc/3230)
- Part: Latch
- Part number: H50002125268
- Condition: Worn
- Location: Bypass Door
- Stage of operation: TO
- Nature of condition: J, S
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/A4J2002F00001

## Discrepancy

AFTER TAKEOFF, LAND GR LVR WAS PLACED IN UP POSITION, FLT DECK CREW REPORTED NO RESPONSE TO GR HNDL (UP) SELECTION, WITH GR REMAINING IN DOWN AND LOCKED POS AND MN GR DOORS OPEN.  RECYCLING OF THE GR HNDL WAS NO HELP.  MAINT WAS NOTIFIED AND A/C RETURNED.  MAINT RECOVERED A/C AND DURING POST FLIGHT INSPECTION MAINT BYPASS DOOR WAS FOUND IN DOWN POSITION.  WHEN  MAINT BYPASS DOOR WAS CLOSED AND WITH HYDR PRESSURE APPLIED MAIN GR DOORS CLOSED.  A/C WAS TOWED TO HANGER, LT GR DOOR WAS REPLACED IAW MM AND A GR SWING WAS PERFORMED IAW MM WITH ALL GR SYS OPERATING NORMAL.  BYPASS DOOR LATCH WAS REPLACED DUE TO UNSERVICEABLE SPRING AND WAS DETERMINED TO BE PRIMARY CAUSE OF AIR TURN BACK.  A/C WAS RETURNED TO SERVICE.

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