# SDR 97UAL900387

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 22, 1997
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N7453U
- Make and model: Boeing 727222
- Aircraft serial: 21907
- Engine: Pwa JT8D15
- System (JASC): [3010 · Airfoil Anti/De-ice System](https://openairdocs.org/jasc/3010)
- Part: Anti-Ice Duct
- Part number: 65588228
- Condition: Broken
- Location: Aft Stairwell
- Stage of operation: IN
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/97UAL900387

## Discrepancy

CREW REPORTED LOUD WHOOSHING SOUND IN AFT AIRSTAIR AREA WHEN ENGINE ANTI-ICE IS TURNED ON.  SOUND GOES AWAY WHEN ENGINE ANTI-ICE IS TURNED OFF.  *S/D*  REPLACED NR 2 ENGINE ANTI-ICE DUCT ABOVE THE STAIRWELL AND THE S-DUCT.

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