# SDR 96UAL900030

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 12, 1996
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N608UA
- Make and model: Boeing 767222
- Aircraft serial: 21869
- Engine: Pwa JT9D7R4D
- System (JASC): [2121 · Air Distribution Fan](https://openairdocs.org/jasc/2121)
- Part: Cooling Fan
- Part number: 36144161
- Condition: Failed
- Location: Air Distr Syst
- Part time: 2,488 hours
- Stage of operation: DE
- Nature of condition: B
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/96UAL900030

## Discrepancy

AT START OF DESCENT, HEAVY SMOKE FILLED THE CABIN AND COCKPIT.  SUPPLEMENTAL DATA UPDATE:  THE APU HAD A SEVERE COOLING FAN FAILURE WHICH CAUSED OIL TO LEAK IN THE INLET PLENUM, CONTAMINATING THE AIR CONDITIONING SYSTEM.  THE COOLING FAN HAD THE SHROUDED ROTOR.  PART TOTAL CYCLES, 2,347.

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