# SDR UIEA2021052001156

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 19, 2021
- Submitted: May 21, 2021
- Operation: Air carrier
- Aircraft: [N1487A](https://openairdocs.org/aircraft/N1487A), registered now
- Make and model: Boeing 767-31K
- Registry model: [Boeing 767-31K](https://openairdocs.org/model/boeing-767-31k) (OpenAirDocs)
- Aircraft serial: 28865
- Aircraft time: 89,888 hours, 18,742 cycles
- System (JASC): [2150 · Cabin Cooling System](https://openairdocs.org/jasc/2150)
- Part: Ecs
- Condition: Contaminated
- Stage of operation: DE
- 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/UIEA2021052001156

## Discrepancy

OCCASIONAL ELECTRICAL SMOKE SMELL ON DESCENT(<P>PERFORMED INSPECTION OF EQUIPMENT COOLING SYSTEM IAW AMM 21-58-00. NO DEFECTS NOTED. PERFORMED VISUAL INSPECTION OF WATER SPRAY NOZZLES IAW AMM 21-53-05. NO DEFECTS NOTED. AC OK FOR CONTINUED SERVICE. RAN BOTH PACKS AT FULL HOT FOR 30 MINUTES, NO FUMES NOTED. REMOVED CONTAMINATION FROM AIR CONDITIONING SYSTEM IAW AMM 21-00-00-21. PERFORMED EWIS INSPECTION IN MEC IAW AMM 05-51-56 AND 20-60-04. NO DEFECTS NOTED.</P>)

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