# SAIB NM-10-18: Instruments: Redesigned Aileron Sensors for Flight Data Recorder - Type: Special airworthiness information bulletin (advisory, not mandatory) - Status: Current - Revision: 0 - Issued: March 4, 2010 - Products: ATR GIE Avions de Transport R gional ATR42-200, ATR42-300, ATR42-320, ATR42-500, ATR72-101, ATR72-102, ATR72-201, ATR72-202, ATR72-211, ATR72-212 and ATR72-212A - Product type: Aircraft, Large Airplane - PDF: https://openairdocs.org/files/sha256/f2/74/f274a3680db7d67aae8606805b036dd2f477cd7b425219e4c3d8481bfe40e3d8 - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/49ABC543576BCA25862576DC0057C056.0001 - DRS record last changed: March 4, 2010 - Page: https://openairdocs.org/saib/NM-10-18 ## Text FAA Aviation Safety **SPECIAL AIRWORTHINESS** INFORMATION BULLETIN SAIB: NM-10-18 SUBJ: Instruments: Redesigned Aileron Sensors for Flight Data Recorder Date: March 4, 2010 This is information only. Recommendations aren’t mandatory. Introduction This Special Airworthiness Information Bulletin (SAIB) advises registered owners and operators of redesigned aileron sensors for the flight data recorder (FDR) installed on ATR - GIE Avions de Transport Regional Model ATR42 and ATR72 airplanes. Background Following an incident on a Model ATR72-212 airplane it was determined that the left aileron surface position data recorded by the FDR was invalid. Further investigation revealed that incorporation of Supplemental Type Certificate (STC) ST01310NY or ST01280NY yielded higher-than-expected levels of incorrect aileron surface position data, as reported from the FDR. As a result of this incident, Delta Engineering redesigned the aileron sensors with high cable tension to reduce cable fatigue, and issued Service Bulletin 2301-06397-2030, dated September 26, 2008. The service bulletin provides operators with guidelines for replacing the existing aileron sensors with the new, improved sensors. At this time, the airworthiness concern is not an unsafe condition that would warrant airworthiness directive (AD) action under Title 14 of the Code of Federal Aviation Regulations (14 CFR) part 39. Recommendations The FAA recommends that all owners and operators of ATR - GIE Avions de Transport Regional Model ATR42 and ATR72 airplanes comply with the actions outlined in Delta Engineering Service Bulletin 2301-06397-2030, dated September 26, 2008. For Further Information Contact Balram Rambrich, Aerospace Engineer, Avionics and Flight Test Branch, ANE-172, FAA, New York ACO, 1600 Stewart Avenue, Suite 410, Westbury, New York 11590; telephone (516) 228-7307; fax (516) 794-5531. For Related Service Information Contact Delta Engineering, 13 DRBA Way, New Castle, DE 19720; phone: (302) 325-9320; fax: (302) 325-9420; email: jamoritz@delta-engineering.com. ## Registered aircraft it may concern (OpenAirDocs) Registry models matched by make and model, the same way as ADs, most registered aircraft first. - [Atr-Gie Avions De Trnsp Rgnl ATR 72-212A](https://openairdocs.org/model/atr-gie-avions-de-trnsp-rgnl-atr-72-212a): 14 registered aircraft (airframe model) - [Aerospatiale/Aeritalia ATR 42-300](https://openairdocs.org/model/aerospatiale-aeritalia-atr-42-300): 12 registered aircraft (airframe model) - [Aerospatiale ATR 72-212](https://openairdocs.org/model/aerospatiale-atr-72-212): 9 registered aircraft (airframe model) - [Atr-Gie Avions De Trnsp Region ATR42-500](https://openairdocs.org/model/atr-gie-avions-de-trnsp-region-atr42-500): 6 registered aircraft (airframe model) - [Aerospatiale/Aeritalia ATR 42-320](https://openairdocs.org/model/aerospatiale-aeritalia-atr-42-320): 4 registered aircraft (airframe model) - [Aerospatiale/Alenia ATR-72-212](https://openairdocs.org/model/aerospatiale-alenia-atr-72-212): 3 registered aircraft (airframe model) - [ATR ATR72-212A](https://openairdocs.org/model/atr-atr72-212a): 3 registered aircraft (airframe model) - [Aerospatiale/Alenia ATR 42-320](https://openairdocs.org/model/aerospatiale-alenia-atr-42-320): 2 registered aircraft (airframe model) - [Aerospatiale/Atr ATR 72 202](https://openairdocs.org/model/aerospatiale-atr-atr-72-202): 2 registered aircraft (airframe model) - [Aerospatiale/Aeritalia ATR72-212](https://openairdocs.org/model/aerospatiale-aeritalia-atr72-212): 1 registered aircraft (airframe model) - [Aerospatiale/Alenia ATR42-500](https://openairdocs.org/model/aerospatiale-alenia-atr42-500): 1 registered aircraft (airframe model) - [Atr-Gie Avions De Transport ATR-42-320](https://openairdocs.org/model/atr-gie-avions-de-transport-atr-42-320): 1 registered aircraft (airframe model) - [Atr-Gie Avions De Trnsp Rgnl ATR 42-300](https://openairdocs.org/model/atr-gie-avions-de-trnsp-rgnl-atr-42-300): 1 registered aircraft (airframe model) - [Eads/Alenia ATR ATR 42-500](https://openairdocs.org/model/eads-alenia-atr-atr-42-500): 1 registered aircraft (airframe model) - [Aerospatiale ATR 42-200](https://openairdocs.org/model/aerospatiale-atr-42-200): 0 registered aircraft (airframe model) - [Aerospatiale ATR 72-101](https://openairdocs.org/model/aerospatiale-atr-72-101): 0 registered aircraft (airframe model) - [Aerospatiale ATR 72-212A](https://openairdocs.org/model/aerospatiale-atr-72-212a): 0 registered aircraft (airframe model) - [Aerospatiale ATR-72-201](https://openairdocs.org/model/aerospatiale-atr-72-201): 0 registered aircraft (airframe model) - [Aerospatiale ATR42-500](https://openairdocs.org/model/aerospatiale-atr42-500): 0 registered aircraft (airframe model) - [Aerospatiale/Aeritalia ATR 42-500](https://openairdocs.org/model/aerospatiale-aeritalia-atr-42-500): 0 registered aircraft (airframe model) - [Aerospatiale/Alenia ATR 72-212A](https://openairdocs.org/model/aerospatiale-alenia-atr-72-212a): 0 registered aircraft (airframe model) - [Aerospatiale/Alenia ATR-42/300](https://openairdocs.org/model/aerospatiale-alenia-atr-42-300): 0 registered aircraft (airframe model) - [ATR - Gie Avions De Trnspt Reg ATR72-212](https://openairdocs.org/model/atr-gie-avions-de-trnspt-reg-atr72-212): 0 registered aircraft (airframe model) - [Atr-Gie Avions De Transport ATR 72-202](https://openairdocs.org/model/atr-gie-avions-de-transport-atr-72-202): 0 registered aircraft (airframe model) - [Atr-Gie Avions De Transport ATR-72-201](https://openairdocs.org/model/atr-gie-avions-de-transport-atr-72-201): 0 registered aircraft (airframe model) --- 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.