# SDR ASAA2020100133261

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 1, 2020
- Submitted: October 3, 2020
- Operation: Air carrier
- Aircraft: [N462AS](https://openairdocs.org/aircraft/N462AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 36362
- Aircraft time: 24,182 hours, 7,814 cycles
- System (JASC): [3610 · Pneumatic Distribution System](https://openairdocs.org/jasc/3610)
- Part: Seal
- Condition: Worn
- Location: Precooler
- 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/ASAA2020100133261

## Discrepancy

ENG NR 1 PRE COOLER CONTROL VALVE KISS SEAL WORN.  GROUNDED-YES.  REMOVED NR 1 ENG PRE COOLER CONTROL VALVE KISS SEAL, REF B737-900 MM 36-12-02.  INSTALLED NEW KISS SEAL ON PRE COOLER CONTROL VALVE, REF MM 36-12-02.

---
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.