# SDR UIEA200200048

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 7, 2002
- Submitted: October 31, 2002
- Operation: Air carrier
- Aircraft: N497MC
- Make and model: Boeing 747-47UF
- Registry model: [Boeing 747-47UF](https://openairdocs.org/model/boeing-747-47uf) (OpenAirDocs)
- Aircraft serial: 29258
- Engine: Ge CF680C2*
- System (JASC): [3260 · Landing Gear Position and Warning](https://openairdocs.org/jasc/3260)
- Part: Uplock Switch
- Condition: Out Of Adjust
- Location: Rt Mlg
- Stage of operation: CL
- How discovered: O
- Nature of condition: N
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UIEA200200048

## Discrepancy

AFTER TAKE OFF THE RIGHT GEAR DID NOT RETRACT.  INDICATED INTRANSIT.  GEAR EXTENDED DOWN OK BUT DID NOT RETRACT AGAIN.  STATUS MESSAGE GEAR DISAGREE, GEAR MONITOR.  T/S BOTH RIGHT GEAR UPLOCK SWITCHES S402 AND S1637.  ADJUSTMENT OUT OF LIMIT, READJUSTED BOTH SWITCHES IAW MM.  PERFORMED GROUND CHECK AND FOUND ALL, OK.

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