# SDR FDEA200903020807

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 2, 2009
- Submitted: March 3, 2009
- Operation: Air carrier
- Aircraft: [N740FD](https://openairdocs.org/aircraft/N740FD), registered now
- Make and model: Airbus A300 B4-622R
- Registry model: [Airbus A300 B4-622R](https://openairdocs.org/model/airbus-a300-b4-622r) (OpenAirDocs)
- Aircraft serial: 559
- Aircraft time: 37,839 hours, 14,353 cycles
- System (JASC): [2120 · Air Distribution System](https://openairdocs.org/jasc/2120)
- Part: Duct
- Part number: 22022862
- Part serial: NSN
- Condition: Cracked
- Location: Zone 100
- 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/FDEA200903020807

## Discrepancy

LEFT PACK LOWER DUCT FROM THE HEAT EXCHANGER TO THE ACM HAS A CRACK APPROX 1.5 INCH LONG.  REMOVED DUCT ASSY AS REQUIRED REF A300-600 AMM 21-51-32.  PERFORMED WELD REPAIR REF DRM, PARA  4-C.  ACCOMPLISHED FPI REF NTM 51-90-00 PT9 PER EA 6-2150-127942 "AIR CONDITIONING, LT PACK DUCT CRACK".  NO CRACKS NOTED.  REINSTALLED DUCT REF AMM 21-51-32.  PERFORMED LEAK CHECK REF AMM 21-51-00.  LEAK CHECK GOOD.

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