# SDR AALA202608031575

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 30, 2026
- Submitted: August 3, 2026
- Operation: Air carrier
- Aircraft: [N955AN](https://openairdocs.org/aircraft/N955AN), registered now
- Make and model: Boeing 737823
- Aircraft serial: 29540
- Aircraft time: 72,091 hours, 31,045 cycles
- System (JASC): [3610 · Pneumatic Distribution System](https://openairdocs.org/jasc/3610)
- Part: Shutoff Valve
- Part number: 32145526
- Part serial: 13521
- Condition: Inoperative
- Location: Zone 400
- Part time: 37,938 hours, 16,392 cycles
- Stage of operation: CL
- How discovered: O
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202608031575

## Discrepancy

AIRCRAFT WAS GROUNDED: ON INITIAL CLIMB OUT AT APPROXIMATELY 3,000 FEET, BLEED 1 BLEED TRIP LIGHT ILLUMINATED. DECESION MADE TO RETURN TO EWR AIRCRAFT LANDED OVERWEIGHT WITHOUT INCIDENT. ACCOMPLISHED QRH PROCEDURE AND LIGHT WOULD NOT EXTINGUISH. REMOVED PRSOV IAW AMM 36-11-04. WHILE REMOVING B NUT CONNECTED TO THE CONTROL PRESSURE SENSE LINE FOUND MISSING SEAL. INSTALLED NEW SEAL. INSTALLED NEW PRSOV IAW AMM 36-11-04. ACCOMPLISHED ENGINE RUN AND LEAK CHECK IAW AMM 71-00-00.

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