# SDR DALA2016030101562

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 29, 2016
- Submitted: March 1, 2016
- Operation: Air carrier
- Aircraft: N993DL
- Make and model: Doug MD-88
- Registry model: [Doug MD-88](https://openairdocs.org/model/mcdonnell-douglas-md-88) (OpenAirDocs)
- Aircraft serial: 53345
- Aircraft time: 63,480 hours, 45,809 cycles
- System (JASC): [2120 · Air Distribution System](https://openairdocs.org/jasc/2120)
- Part: Duct
- Condition: Cracked
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2016030101562

## Discrepancy

CRACKS ON DUCT, 4 EA, UPPER SETTLEMENT AREA, 1EA, LUGS 2EA AND NEAR OF FLANGE.  UPPER SETTLEMENT AREA WAS REPAIRED IAW SOPM 20-10-19, PAR 3D.  LUGS WERE REPAIRED IAW ER/A 494638-14MA, REV B.  FLANGE WAS REPAIRED IAW ER/A 503276-14MA, REV C AND AREA WERE TREATED AND PAINTED IAW SRM 51-10-3, PAR 14 AND 21, CRACK ON FLANGE .300", UPPER SETTLEMENT AREA 2", CRACK LUGS .250".

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