# SDR P5CA9701688

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 11, 1997
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N850FT](https://openairdocs.org/aircraft/N850FT), registered now
- Make and model: Boeing 747122
- Aircraft serial: 19755
- Engine: Pwa JT9D7A
- System (JASC): [3610 · Pneumatic Distribution System](https://openairdocs.org/jasc/3610)
- Part: Precooler
- Condition: Cracked
- Location: Nr 3 Engine
- 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/P5CA9701688

## Discrepancy

CRACK IN NR 3 ENG PRE-COOLER, AFT OF HIGH STAGE BLEED CONNECTION.  WELDED CRACK IAW PW 72-53-01.

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