# SDR ASAA2015071912496

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 19, 2015
- Submitted: July 23, 2015
- Operation: Air carrier
- Aircraft: [N453AS](https://openairdocs.org/aircraft/N453AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 36354
- Aircraft time: 6,083 hours, 1,974 cycles
- System (JASC): [2150 · Cabin Cooling System](https://openairdocs.org/jasc/2150)
- Part: Actuator
- Part number: 676000141
- Part serial: 676000141145
- Condition: Failed
- Location: Ram Air Exhaust
- Part time: 6,086 hours, 1,975 cycles
- Stage of operation: NR
- 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/ASAA2015071912496

## Discrepancy

RIGHT RAM DOOR FULL OPEN LIGHT ON IN FLIGHT.  ACFT GROUNDED.  BITE CHECK OF ZONE TEMP CONTROLLER SHOWED NO FAULTS.  SMART ACTUATORS BOTH HAD GREEN LIGHTS. FOUND STEP 9 (D) ON FIM 21-51/803 TO BE IN ERROR, EXHAUST LOUVERS DON'T MOVE UNTIL FLAPS UP.  REF EA 900ER-21EA-15458 FOR CORRECTION TO MANUAL.  OPS CHECK OF RAM DOOR SYS NORMAL. ACFT GROUND VERIFICATION SATISFACTORY.  NO PRIOR HISTORY 90 DAYS. REF FIM 21-51/803, MM 21-50-00.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.