AIRCRAFT WAS GROUNDED: LEFT DUCT 20 PSI LOWER IN DESCENT THAN RIGHT DUCT ACCOMPANY BY A STRONG SWEET ODOR DURING DESCENT. ACCOMPLISHED LEFT HAND ENG BLEED HEALTH CHECK, PER WORKCARD 08L40036001, REMOVED AND REPLACED LEFT HAND ENGINE HIGH STAGE VALVE REGULATOR (AALA202502195695), PER AMM 36-11-07. ALSO REPLACED HIGH STAGE VALVE (AALA202502193412), PER AMM 36-11-06. OPERTIONAL CHECKS AND LEAK CHECKS GOOD AT THIS TIME. ACCOMPLISHED ENGINE RUNS, PER AMM 71-00-00 TO ISOLATE ODOR SOURCE AND FOUND NO ODOR AT THIS TIME. SEE TSI 0108999.
| Incident date | February 17, 2025 |
|---|---|
| Airline | AALA |
| Flight | AMM36 |
| Aircraft | BOEING 737823 |
| Registration | N996NN |
| Affected area | Engine |
| Event type | Fumes or Odor |
| Verification | Official |
Sources
- FAA SDR: AALA fumes or odor report on 2025-02-17 (external.apic4e.faa.gov)
- FAA SDR: AALA fumes or odor report on 2025-02-17 (external.apic4e.faa.gov)
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