# SDR DHL9974112C

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 27, 1999
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N741DH
- Make and model: Boeing 727-2Q9
- Registry model: [Boeing 727-2Q9](https://openairdocs.org/model/boeing-727-2q9) (OpenAirDocs)
- Aircraft serial: 21931
- System (JASC): [2150 · Cabin Cooling System](https://openairdocs.org/jasc/2150)
- Part: Plenum
- Condition: Corroded
- Location: Air Cond Syst
- 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/DHL9974112C

## Discrepancy

AT C CHECK, CORROSION ON LEFT AND UPPER WALL OF  AIR CONDITIONING PLENUM.  INSTALLED SKIN REPAIR PER AVITAS ENGINEERING ORDER 99AVHM 004R0-01, FILLER 19 BY 18, DOUBLER 14 BY 10, TRIPLER 13 BY 9, N/R 3472/3454.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.