# SDR CALA2026042715739

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 27, 2026
- Submitted: April 27, 2026
- Operation: Air carrier
- Aircraft: [N684UA](https://openairdocs.org/aircraft/N684UA), registered now
- Make and model: Boeing 767-3CB
- Registry model: [Boeing 767-3CB](https://openairdocs.org/model/boeing-767-3cb) (OpenAirDocs)
- Aircraft serial: 33466
- Aircraft time: 79,337 hours, 13,614 cycles
- System (JASC): [2120 · Air Distribution System](https://openairdocs.org/jasc/2120)
- Part: Unknown
- Condition: Odor
- Location: Cabin
- Stage of operation: TX
- How discovered: O
- Nature of condition: B
- Precautionary procedure: D
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2026042715739

## Discrepancy

ON LEFT ENGINE STARTUP- FLT ATT REPORTED VERY STRONG GAS FUMES I N  CABIN. COCKPIT SMELL TOOREFER TO LP# 8627807 EGC PERFORMED FUEL DISTRIBUTION INSPECTION UP TO AND INCLUDING STEP 2. F (2)(M) PER AMM: 73-11-00-206-001-N00. NO LEAK CHECKED NOTED DURING PRESS CHECK. FOR INSTALLATION OF FUEL VALVE STRAINER, COMPLETED UP TO AND INCLEDING STEPS 3. F (O). PER AMM: 73-11-04  TEST AND LEAK CHECK STILL PENDING. THAT ALSO COMPLETES THE FUEL DISTRIBUTION SYSTEM INSPECTION PER AMM 73-11-00-206-001-N00. ALSO PERFORMED AMM 05-51-56-940-801-C1 UP TO AND INCLUDING 1. D. (8) PERFORMED LEAK CHECK OF FUEL DISTRIBUTION VALVE IAW AMM 73-11-04-404-028-N00 AND POWER PLANT TEST REFERENCE TABLE (71-00-00-501). NO LEAKS NOTED OK TO CONTINUE CONTINUED INSPECTION IAW AMM 05-51-56-940-801-C1 FROM STEP 1)D)8 TO STEP 1)D)21. FOUND SOURCE OF SMELL TO COME FROM ENGINE 1. REF 8660083 FOR INSPECTION OF OIL INSIDE THE 2.5 BLEED AREA NO OIL LEAK FOUND. NO FUEL LEAKS NOTED ON ENGINE FROM INSPECTION FUEL DISTRUBUTION VALVE. FUMES CLEAR SHORTLY AFTER NORMNORMALLY EACH TIME. WITH TOMC CONCURRENCE, OK TO CLOSE LOG PAGE.

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