# SDR DHL2001727551

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 17, 2001
- Submitted: September 14, 2001
- Operation: Air carrier
- Aircraft: [N727DH](https://openairdocs.org/aircraft/N727DH), registered now
- Make and model: Boeing 727-200
- Registry model: [Boeing 727-200](https://openairdocs.org/model/boeing-727-200) (OpenAirDocs)
- System (JASC): [2150 · Cabin Cooling System](https://openairdocs.org/jasc/2150)
- Part: Heat Exchanger
- Part number: 65619034
- Condition: Worn
- Location: A/C Bay
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DHL2001727551

## Discrepancy

ON C-CHECK, RIGHT PRIMARY H/E EXHAUST LOUVERS HAVE PLAY.  REMOVED RT PRIMARY H/E EXHAUST LOUVERS PER B-727 IAW MM 21055-00.  REPLACED RT  PRIMARY H/E EXHAUST LOUVERS PER B-727 MM 21-55-00.  OPS CHECK RT PRIMARY HEAT EXCHANGER EXHAUST LOUVERS PER B-727 MM 21-55-01, OPS CHECK OK.

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