# SDR DALA2026072404323

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 23, 2026
- Submitted: July 25, 2026
- Operation: Air carrier
- Aircraft: [N3757D](https://openairdocs.org/aircraft/N3757D), registered now
- Make and model: Boeing 737832
- Aircraft serial: 30813
- Aircraft time: 78,903 hours, 30,273 cycles
- System (JASC): [3610 · Pneumatic Distribution System](https://openairdocs.org/jasc/3610)
- Part: Flex Hose
- Condition: Leaking
- Location: Zone 100
- Stage of operation: TX
- How discovered: O
- Nature of condition: B
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2026072404323

## Discrepancy

AFTER LANDING, APU STARTED & BOTH PACKS PUT ON APU. AN IMMEDIATE ELECTRICAL ODOR NOTED. APU BLEED SHUTOFF & PACKS PUT BACK ON ENG BLEED. ODOR DISSIPATED, APU CONTINUED TO OPS NORMALLY PROVIDING ELEC POWER ONLY.   FOUND 2EA FWD GALLEY DRAIN LINE FLEX HOSES LEAKING INTO E/E BAY.  FOUND 3 WIRES BURNED & BROKEN ON BACK OF P-91 TO PWR INDICATION LIGHTS.  ALSO FOUND LATCHING CONTACTOR BURNED.  R & R NR 1 BUS TIE BREAKER IAW AMM 24-21. REPL L11 & L13 LIGHT SOCKETS ON P91 PNL IAW SWPM 20-84. REPLACED 2 FWD GALLEY DRAIN FLEX HOSES IN E/E BAY IAW AMM 20-10. REPLACED LIGHT ASSY L9 & L15 ON P91 IAW SWPM 20-84 . COMPLETED CHKS IAW AMM 24-21. PERF AUTOLAND IAW AMM 22-00. ALL CKD GOOD. (8791574) AIRCRAFT GROUNDED

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