# SDR UIEA2019062104550

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 20, 2019
- Submitted: June 24, 2019
- Operation: Air carrier
- Aircraft: [N1409A](https://openairdocs.org/aircraft/N1409A), registered now
- Make and model: Boeing 767306
- Aircraft serial: 27960
- Aircraft time: 90,525 hours, 17,208 cycles
- System (JASC): [2100 · Air Conditioning System](https://openairdocs.org/jasc/2100)
- Part: Unknown
- Condition: Noise
- Location: Cockpit
- Stage of operation: TX
- How discovered: O
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UIEA2019062104550

## Discrepancy

BLEED AIR NOISE IN COCKPIT REACHES 78.3 DB AT CLIMB POWER.  COULD NOT DUPLICATE ON GROUND. OPS CHECK OF PACK SYSTEM GOOD IAW AMM 21-51-00.  T/S FLIGHT DECK BLEED AIR NOISE IAW AMM 21-22-00. NO DEFECTS NOTED. RAN RH ENGINE TO TRY TO DUPLICATE THE NOISE IAW AMM 71-00-00. FLT DECK NOISE WITH PACKS ON WAS NORMAL.

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