# SDR ASAA2023020541857

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 5, 2023
- Submitted: February 8, 2023
- Operation: Air carrier
- Aircraft: [N594AS](https://openairdocs.org/aircraft/N594AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35191
- Aircraft time: 52,754 hours, 15,617 cycles
- System (JASC): [2150 · Cabin Cooling System](https://openairdocs.org/jasc/2150)
- Part: Plenum
- Part number: 22156291
- Condition: Damaged
- Location: Right Ecs 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/ASAA2023020541857

## Discrepancy

RIGHT HAND AFT (PRIMARY) HEAT EXCHANGER PLENUM DAMAGED.  GROUNDED - YES. REMOVED AND REPLACED PRIMARY HEAT EXCHANGER PLENUM. PERFORMED INSTALL PER REF B737-800 AMM 21-51-03-400-804-002.

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