# SDR HALA2010020800054

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 8, 2010
- Submitted: February 9, 2010
- Operation: Air carrier
- Aircraft: N587HA
- Make and model: Boeing 767-33AER
- Registry model: [Boeing 767-33AER](https://openairdocs.org/model/boeing-767-33aer) (OpenAirDocs)
- Aircraft serial: 33421
- Aircraft time: 27,669 hours, 5,278 cycles
- Engine: Pwa PW4060
- System (JASC): [2131 · Cabin Pressure Controller](https://openairdocs.org/jasc/2131)
- Part: Controller
- Part number: 79275516
- Part serial: 880951
- Condition: Malfunctioned
- Location: Cabin Pressure
- Part time: 1,875 hours, 348 cycles
- Stage of operation: CR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/HALA2010020800054

## Discrepancy

ETOPS SIGNIFICANT SYS - FRM 21300900 CABIN PRESSURIZATION UNBALE TO MAINTAIN SCHEDULE ALTITUDE AT FL 380 W/ENT ANTI ICE ON. DUCT PRESS 15 PSI, OUTFLOW VLV FULLY CLOSED, CABIN CLIMB AT 300 FPM REACHED 8500'(SCHED IS 6500') COND SAME IN AUTO 1 OR AUTO 2 W/ENG ANTI ICE OFF CABIN ALT DESCEND BACK TO 6500'.  PERFORMED FIM21-31-00 FIG 103. NO DEFECTS NOTED. PERFORMED AMM36-23-00 AIR SUPPLY BITE SYS TEST NO DEFECTS NOTED TOOK AC ON HI PWR RUN NO DEFECTS NOTED ON L/R ENG BLEED AIR SYS. ACCOMP FIM36-10-00/101 FIG 28A R & R BOTH LT/RT PRV CONTROLLER IAW AMM36-11-19. OPS & SEC CK OF PRV CONTROLLERS GOOD IAW AMM36-11-19.

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