# SDR AMTA200500634

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 5, 2005
- Submitted: August 30, 2005
- Operation: Air carrier
- Aircraft: N555TZ
- Make and model: Boeing 757-33N
- Registry model: [Boeing 757-33N](https://openairdocs.org/model/boeing-757-33n) (OpenAirDocs)
- Aircraft serial: 32589
- System (JASC): [3610 · Pneumatic Distribution System](https://openairdocs.org/jasc/3610)
- Part: Seal
- Condition: Unserviceable
- Location: Lt Shutoff Valve
- Component: Shutoff Valve
- Component part number: 32143044
- Stage of operation: CL
- How discovered: O
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AMTA200500634

## Discrepancy

ON TAKEOFF AND CLIMB OUT, LT HIGH STAGE BLEED LIGHT ILLUMINATED ACCOMPANIED WITH EICAS MESSAGE RETURNED TO DEPARTURE.  T/S IAW FIM, FOUND HPSOV BUTTERFLY SEAL BROKEN.  REPLACED IAW FIM MM, LEAK CHECK GOOD.  (K)

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