# SDR UPS99230493

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 30, 1999
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N916UP](https://openairdocs.org/aircraft/N916UP), registered now
- Make and model: Boeing 727172C
- Aircraft serial: 19808
- System (JASC): [7830 · Engine Thrust Reverser](https://openairdocs.org/jasc/7830)
- Part: Skin
- Condition: Cracked
- Location: Nr 1 Tr Unit
- Stage of operation: IN
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UPS99230493

## Discrepancy

INSPECTION TYPE:N/A, NR 1 THRUST REVERSER UPPER DOOR ASSY INTERIOR SKIN CRACKED IN TWO PLACES.  REMOVED AND REPLACED NR 1 T/R UPPER DOOR ASSY IAW MM 78-30-00.

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