# SDR ASAA2023042442970

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 24, 2023
- Submitted: April 24, 2023
- Operation: Air carrier
- Aircraft: [N979AK](https://openairdocs.org/aircraft/N979AK), registered now
- Make and model: Boeing 737-9
- Registry model: [Boeing 737-9](https://openairdocs.org/model/boeing-737-9) (OpenAirDocs)
- Aircraft serial: 43393
- Aircraft time: 2,907 hours, 894 cycles
- System (JASC): [3610 · Pneumatic Distribution System](https://openairdocs.org/jasc/3610)
- Part: Modulating Valve
- Part number: 632920704
- Part serial: 2466
- Condition: Faulty
- Location: #1 Engine
- Part time: 3,653 hours, 1,066 cycles
- Stage of operation: NR
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2023042442970

## Discrepancy

TECH SERVICES REQUEST FOLLOW-UP TO LEFT BLEED LOW TEMP AERMETRIC FAULT GROUNDED - YES. REPLACED THE #1 ENG FAMV PER B737-9 AMM 36-12-03. OPS CKS GOOD, ETOPS GROUND VERIFICATION SUCCESSFUL.

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