# SDR AALA202402205239

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 19, 2024
- Submitted: February 20, 2024
- Operation: Air carrier
- Aircraft: [N336TM](https://openairdocs.org/aircraft/N336TM), registered now
- Make and model: Boeing 737823
- Aircraft serial: 68107
- Aircraft time: 1,225 hours, 453 cycles
- System (JASC): [2820 · Aircraft Fuel Distribution System](https://openairdocs.org/jasc/2820)
- Part: Pressure Switch
- Part number: 21C1321
- Condition: Inoperative
- Location: Fuel System
- Stage of operation: NR
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202402205239

## Discrepancy

AIRCRAFT WAS NOT GROUNDED: NUMBER 1AFT FUEL PUMP LOW PRESSURE LIGHT DOES NOT ILLUMINATE WITH THE SWITCH OFF, BULBS FUNCTION NORMALLY. REMOVED AND REPLACED NUMBER 1 AFT FUEL PUMP LOW PRESSURE SWITCH. PER AMM 28-42-11.

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