# SDR SWAA2026052004872

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 20, 2026
- Submitted: May 21, 2026
- Operation: Air carrier
- Aircraft: [N474WN](https://openairdocs.org/aircraft/N474WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 33861
- Aircraft time: 71,381 hours, 42,885 cycles
- Engine: Cfmint CFM567B242
- System (JASC): [3610 · Pneumatic Distribution System](https://openairdocs.org/jasc/3610)
- Part: Shutoff Valve
- Condition: Leaking
- Location: Nr 2 Engine
- Stage of operation: CL
- How discovered: O
- Nature of condition: M, J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA2026052004872

## Discrepancy

DURING CLIMB WE RECIEVED A M/C LIGHT OVHT/DEL ASSOCIATED WITH NR 2 ENGINE OVERHEAT LIGHT FOLLOWED THE QRC FOLLOWED BY THE QRH THE LIGHT EXTINGUISH ONCE WE BROUGHT THE T/R DOWN TO 40%.   PERFORMED FIM 26-10 TASK 805. PERFORMED ENGINE/APU FIRE DETECTION CONTROL MODULE BITE PER 26-10-01, OPS CHK GOOD. PERFORMED RESISTANCE CHECK OF NR 2 ENG FIRE LOOPS IAW WDM 26-11-21,  ALL RESISTANCE WITHIN LIMITS.  INSPECTED NR 2 ENG FIRE DETECTORS REF AMM 26-11-01; NO DEFECTS NOTED.  PERFORMED NR 2 ENG BLEED AIR LEAK CHKD IAW AMM 36-11-00. FOUND PRSOV LEAKING.  R & R NR 2 ENG PRSOV IAW AMM 36-11-04, OPS & LEAK CHKD GOOD.  PERFORMED NR 2 ENG HIGH POWER RUN IAW AMM 71-00-00, NO NR 2 ENGINE OVERHEAT INDICATION. ACFT OK FOR SERVICE.

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