# SDR P5CA2020091400312

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 13, 2020
- Submitted: September 16, 2020
- Operation: Air carrier
- Aircraft: N643GT
- Make and model: Boeing 767-3JHF
- Registry model: [Boeing 767-3JHF](https://openairdocs.org/model/boeing-767-3jhf) (OpenAirDocs)
- Aircraft serial: 37809
- Aircraft time: 18,413 hours, 4,987 cycles
- System (JASC): [2150 · Cabin Cooling System](https://openairdocs.org/jasc/2150)
- Part: Controller
- Part number: 3987505
- Part serial: 4939
- Condition: Malfunctioned
- Location: Pack Temp
- 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/P5CA2020091400312

## Discrepancy

RIGHT PACK TEMP EICAS AFTER TAKEOFF, LEFT PACK DEFERRED.  RETURN TO ICN.  FOLLOWED FIM TASK 21-51 FAULT TREE 844 PERFORMED T/S, FOUND RT STANDBY CONTROLLER FAULT.  REMOVED AND REPLACED RT STANDBY CONTROLLER AND CHECKED OK, NO FAULT FOUND PER AMM 21-51-14/401.  PERFORMED BITE TEST OF RT PACK TEMP CONTROLLER, FOUND PACK TEMP CONTROLLER FAULT, RAM INLET ACT FAULT, LT CHECKED OK.  REMOVED & REPLACED RT PACK TEMP CONTROLLER (SOS PART) AND RT PACK CHECKED OK, PER AMM 21-51-14/401.  NO FAULT MSG FOUND PER AMM 21-53-03/401.

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