# SDR UPS99830569

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 5, 1999
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N808UP
- Make and model: Doug DC-8-73F
- Registry model: [Doug DC-8-73F](https://openairdocs.org/model/douglas-dc-8-73f) (OpenAirDocs)
- Aircraft serial: 46008
- System (JASC): [2160 · Cabin Temperature Control System](https://openairdocs.org/jasc/2160)
- Part: Switch
- Condition: Inop
- Location: Lt Pac
- Stage of operation: NR
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UPS99830569

## Discrepancy

INSPECTION TYPE:N/A, ATB-LOUD HOWLING NOISE IN THE COCKPIT COMING FROM THE NOSE AREA IMPEDING COMMUNICATIONS.  FOUND LEFT FAN INLET DOOR REMAINS OPEN IN FLIGHT.  REPAIRED GROUND AT S3-8012.  ALSO, REMOVED AND REPLACED R2-25, DOOR NOW CLOSES WITH GROUND TO FLIGHT SHIFT.

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