# SDR 2003F00047

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 2, 2002
- Submitted: January 6, 2003
- 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
- System (JASC): [3231 · Landing Gear Door Retract Section](https://openairdocs.org/jasc/3231)
- Part: Latch
- Part number: H50002125268
- Condition: Worn
- Location: Bypass Door
- Stage of operation: CL
- How discovered: O
- Nature of condition: J, S
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2003F00047

## Discrepancy

AFTER T/O FROM PIE, THE LANDING GEAR LEVER WAS PLACED IN THE UP POSITION, CREW REPORTED NO RESPONSE TO GEAR HANDLE SELECTION, GEAR REMAINED DOWN AND LOCKED AND MLG DOORS OPEN.  RECYCLED THE GEAR HANDLE, NO HELP.  RETURNED TO PIE.  DURING THE POST FLIGHT INSPECTION THE MAINTENANCE BYPASS DOOR WAS FOUND IN THE DOWN POSITION.  WHEN THE MAINTENANCE BYPASS DOOR WAS CLOSED AND WITH HYDRAULIC PRESSURE APPLIED THE MAIN GEAR DOORS CLOSED.  THE LEFT GEAR DOOR WAS REPLACED IAW MM 32-12-1 AND A GEAR SWING WAS PERFORMED IAW MM 32-30-0 WITH ALL GEAR SYSTEMS OPERATING NORMAL.  THE BYPASS DOOR LATCH WAS REPLACED DUE TO AN UNSERVICEABLE SPRING AND WAS DETERMINED TO BE THE PRIMARY CAUSE OF THE AIR TURN BACK.  (M)

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.