# SDR SIMA200814303

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 20, 2008
- Submitted: May 22, 2008
- Operation: Air carrier
- Aircraft: N839AE
- Make and model: Emb EMB-135KL
- Registry model: [EMB EMB-135KL](https://openairdocs.org/model/embraer-emb-135kl) (OpenAirDocs)
- Aircraft serial: 145653
- Aircraft time: 14,008 hours, 11,416 cycles
- Engine: Allsn AE3007A
- System (JASC): [7200 · Engine (Turbine/Turboprop)](https://openairdocs.org/jasc/7200)
- Part: Engine
- Condition: Malfunctioned
- Location: Nr 2
- Stage of operation: CL
- How discovered: O
- Nature of condition: E, R, J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SIMA200814303

## Discrepancy

ON FLIGHT 3882, DURING TAKEOFF CREW REPORTED THERE WAS A VERY PRONOUNCED EXCESSIVE VIBRATION DURING TAKEOFF ROLL AND DURING GEAR RETRACTION FROM NOSE GEAR.  DURING TAKEOFF DEADHEAD EMJ CAPTAIN REPORTED 3 LOUD BANGS SIMILAR TO A COMPRESSOR STALL ON TAKEOFF.  MOMENTARY LOSS OF NR 2 ENGINE INDICATIONS N1 N2 AND ITT INDICATED DASHED LINES ON LIFTOFF WITH APU RUNNING RELAYS BEHIND F/O SEAT KEPT CLICKING AND CABIN LIGHTS FLICKERED.

---
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.