# SDR USAASB97248

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 10, 1997
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N435US
- Make and model: Boeing 737-4B7
- Registry model: [Boeing 737-4B7](https://openairdocs.org/model/boeing-737-4b7) (OpenAirDocs)
- Aircraft serial: 24557
- System (JASC): [5270 · Door Warning System](https://openairdocs.org/jasc/5270)
- Part: Switch
- Condition: Lack Of Lube
- Location: Cargo Door
- Stage of operation: CL
- Nature of condition: N
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/USAASB97248

## Discrepancy

PIT - FL 1211 - THE A/C RETURNED TO FIELD (PIT) DUE TO THE AFT CARGO DOOR WARNING LIGHT ILLUMINATED.  A/C LANDED WITHOUT FURTHER INCIDENT.  MAINTENANCE CLEANED AND LUBED AFT CARGO DOOR WARNING SWITCH (390FW04A10).  OPERATIONAL CHECK GOOD. (M)

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