# SDR UPS96420611

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 16, 1996
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N673UP](https://openairdocs.org/aircraft/N673UP), registered now
- Make and model: Boeing 747123
- Aircraft serial: 20325
- System (JASC): [2611 · Smoke Detection](https://openairdocs.org/jasc/2611)
- Part: Smoke Detector
- Part number: 215680
- Condition: Inoperative
- Location: Cargo Compt
- Stage of operation: CL
- Nature of condition: N
- Precautionary procedure: F
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UPS96420611

## Discrepancy

INSPECTION TYPE-N/A, LOWER AFT CARGO FIRE WARNING DURING CLIMB, BOTH FIRE BOTTLES DISCHARGED AS PER AOM.  AIR TURNBACK TO SEL.  REMOVED AND REPLACED NR 4 SMOKE DETECTOR IN AFT LWR CARGO COMP, OPS CHK NORMAL PER B747 M/M.  REMOVED AND REPLACED BOTH FIRE BOTTLES IAW MM 26-23-01, OPS SQUIB AND PRESS SYSTEM CHECK GOOD.

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