# SDR DALA2018091105548

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 9, 2018
- Submitted: September 11, 2018
- Operation: Air carrier
- Aircraft: [N668DN](https://openairdocs.org/aircraft/N668DN), registered now
- Make and model: Boeing 757232
- Aircraft serial: 25141
- Aircraft time: 84,396 hours, 38,914 cycles
- System (JASC): [3610 · Pneumatic Distribution System](https://openairdocs.org/jasc/3610)
- Part: Fitting
- Condition: Damaged
- Location: Bleed Air Sys
- Stage of operation: IN
- 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/DALA2018091105548

## Discrepancy

NR 2 PYLON PRE COOLER HAS DEBRIS IN INLET AND OUTLET. FOUND INBD AFT BUSHING AND FITTING DAMAGED. REPLACED INBD AFT BUSHING & FITTING ASSY PER BAC DWG 311N3654. INSTALLED SERVICEABLE PRE-COOLER AND REINSTALLED FAN AIR VALVE PER AMM 36-11.

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