# SDR SIMA200414202

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 19, 2004
- Submitted: June 25, 2004
- Operation: Air carrier
- Aircraft: N807AE
- Make and model: Emb EMB-135KL
- Registry model: [EMB EMB-135KL](https://openairdocs.org/model/embraer-emb-135kl) (OpenAirDocs)
- Aircraft serial: 145506
- Engine: Allsn AE3007A
- System (JASC): [2731 · Elevator Tab Control System](https://openairdocs.org/jasc/2731)
- Part: Control Unit
- Part number: 3621005009
- Part serial: 4050
- Condition: Inoperative
- Location: Pitch Trim
- Part time: 6,093 hours, 6,254 cycles
- Stage of operation: LD
- How discovered: O
- Nature of condition: J, F
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SIMA200414202

## Discrepancy

MAINTENANCE REPORTED A DUAL PITCH TRIM FAIL ON LANDING AND TWICE ENROUTE PITCH TRIM 1 AND 2 INOPERATIVE.  MESSAGE APPEARED FOR 5 SECONDS EACH TIME, THEN WENT OUT.  REPLACED HSCU IAW MFG MM.  OPERATIONAL CHECK GOOD.  AC RETURNED TO SERVICE.  (SW21200406973)

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