# SDR AWXA200200257

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 30, 2002
- Submitted: April 1, 2002
- Operation: Air carrier
- Aircraft: N155AW
- Make and model: Boeing 737-3G7
- Registry model: [Boeing 737-3G7](https://openairdocs.org/model/boeing-737-3g7) (OpenAirDocs)
- Aircraft serial: 23777
- Aircraft time: 48,608 hours, 34,908 cycles
- Engine time: 0 hours, 0 cycles
- System (JASC): [3610 · Pneumatic Distribution System](https://openairdocs.org/jasc/3610)
- Part: Heat Exchanger
- Part number: 1828202
- Part serial: 778019
- Condition: Cracked
- Part time: 35,679 hours, 31,002 cycles
- Stage of operation: CL
- Nature of condition: J, S
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AWXA200200257

## Discrepancy

PHX - DIVERSION - FLT 0546 - WHILE ENROUTE FROM LAS TO DFW THE R/H WING TO BODY OVERHEAT LIGHT ILLUMINATED, AIRCRAFT DIVERTED TO PHX. MAINTENANCE INSPECTED THE R/H PACK BAY AND FOUND 2 LOOSE/LEAKING CLAMPS. A FOLLOW UP (FUP) WAS ISSUED FOR A PNUEMATIC DUCT AND OVERHEAT INSPECTION TO BE ACCOMPLISHED (T/C'S 18M36003 & I8M36004). FOLLOW UP INSPECTION IDENTIFIED THE R/H PRIMARY HEAT EXCHANGER CRACKED, REPLACED PRIMARY HEAT EXCHANGER IAW  T/C  R2C21004, OPERATIONAL CHECK WAS GOOD.

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