Report: Flight Control System Problem Caused F/A-22 Mishap | Aero-News Network
Aero-News Network
RSS icon RSS feed
podcast icon MP3 podcast
Subscribe Aero-News e-mail Newsletter Subscribe

Airborne Unlimited -- Most Recent Daily Episodes

Episode Date

Airborne-Monday

Airborne-Tuesday

 Airborne-Wednesday Airborne-Thursday

Airborne-Friday

Airborne On YouTube

Airborne-Unlimited-05.06.24

Airborne-NextGen-04.30.24

 Airborne-Unlimited-05.01.24 Airborne-AffordableFlyers--05.02.24

Airborne-Unlimited-05.03.24

Fri, Jun 10, 2005

Report: Flight Control System Problem Caused F/A-22 Mishap

Caused By Brief Power Interruption

A flight control system problem caused an F/A-22 Raptor to crash on the runway at Nellis Air Force Base, NV, on December 20th, according to an Air Force report released June 8th.

As ANN reported at the time, the pilot ejected and sustained minor injuries. The $133.3-million aircraft, assigned to the 422nd Test and Evaluation Squadron at Nellis, was destroyed when it crashed. Additional damage was limited to an arresting cable, runway guide sign, runway light and the runway itself.

The flight control system malfunction was caused by a brief power interruption to the aircraft’s three rate sensor assemblies, which caused them to fail. The assemblies measure angular acceleration in all three axes: pitch, roll and yaw. With three failed assemblies, the F/A-22 is not able to fly, investigators said.

When the pilot shut down engines for maintenance servicing, he left the auxiliary power unit running. Based on technical order guidance, he believed the power unit would supply continuous power to the flight control system. However, there was a less-than-one second power interruption to the assemblies during engine shutdown.

There is no automatic warning of this condition. To discover it, the pilot would have had performed a diagnostic test. The pilot accomplished a successful test before engine shutdown, and because the power unit was on, he believed a second test was unnecessary.

FMI: www.af.mil

Advertisement

More News

ANN's Daily Aero-Term (05.07.24): Hazardous Weather Information

Hazardous Weather Information Summary of significant meteorological information (SIGMET/WS), convective significant meteorological information (convective SIGMET/WST), urgent pilot>[...]

ANN's Daily Aero-Linx (05.07.24)

Aero Linx: The T-6 Racing Association The T-6 Racing Association is all about T-6‘s and racing. Our mission is to bring great racing to our fans in Reno and other venues wher>[...]

Airborne 05.01.24: WACO Kitchen, FAA Reauthorization, World Skydiving Day

Also: Electra Aero, AMO-CBP v Smugglers, Naval King Airs, Boeing Deal To the surprise of everyone involved, Waco Kitchen shut down both airport operations with little warning and h>[...]

Airborne Affordable Flyers 05.02.24: Bobby Bailey, SPRG Report Cards, Skydive!

Also: WACO Kitchen Bails, French SportPlane Mfr to FL, Dynon-Advance Flight Systems, Innovation Preview Bobby Bailey, a bit of a fixture in sport aviation circles for his work with>[...]

Airborne 05.03.24: Advanced Powerplant Solutions, PRA Runway Woes, Drone Racing

Also: Virgin Galactic, B-29 Doc to Allentown, Erickson Fire-Fighters Bought, FAA Reauthorization After dealing with a big letdown after the unexpected decision by Skyreach to disco>[...]

blog comments powered by Disqus



Change Display

Headlines Only | Headlines w/ Teasers | View Everything

Advertisement

Top Videos

Airborne-Flight Training 05.09.24: ERAU at AIAA, LIFT Diamond Buy, Epic A&P

Airborne 05.08.24: Denali Update, Dad-Daughter Gyro, Lake SAIB

Airborne-NextGen 05.07.24: AI-Piloted F-16, AgEagle, 1st 2 WorldView Sats

See All

Advertisement

Podcasts

Advertisement

© 2007 - 2024 Web Development & Design by Pauli Systems, LC