Close sidebar

FAA issues AD for 737NGs

written by australianaviation.com.au | March 15, 2010
Qantas and Virgin Blue operate substantial fleets of 737NGs. (Seth Jaworski)
Qantas and Virgin Blue operate substantial fleets of 737NGs. (Seth Jaworski)

The FAA has issued an emergency Airworthiness Directive (AD) to operators and owners of Boeing 737NGs to inspect the aircraft’s elevator tab control mechanisms following an incident on a Ryanair 737-800.

The FAA says the AD originated from a reported “failure of aft attach lugs on the left elevator tab control mechanism, which resulted in severe elevator vibration… Subsequent investigation revealed extensive damage to the elevator tab control system. Severe vibration in this attach point is suspected of allowing rapid wear of the joint, and resulted in failure of the attach lugs. This condition, if not corrected, could result in a loss of aircraft control and structural integrity.”

The AD came after Boeing issued an Alert Service Bulletin on March 12 which describes procedures for a detailed inspection to detect discrepancies of the inboard and outboard aft attach lugs of the elevator tab control mechanism, with 12 or 30 days to comply depending on the specific aircraft. The AD also requires reporting the inspection results to Boeing.

Advertisement
Advertisement

Both Qantas and Virgin Blue operate substantial fleets of 737NGs, but neither has said if they expect their schedules to be affected by the required inspections to their aircraft.

Steer your own in-flight experience – available on print and digital Whether our classic glossy magazine in your letterbox, daily news updates in your inbox, peeling back a few layers in the podcast or our monthly current affair reports, you can count on us to keep you up to date. Sign up today for just $99.95 for more exclusive offers here. Subscribe now at australianaviation.com.au.

FAA issues AD for 737NGs

written by australianaviation.com.au | March 15, 2010
Qantas and Virgin Blue operate substantial fleets of 737NGs. (Seth Jaworski)
Qantas and Virgin Blue operate substantial fleets of 737NGs. (Seth Jaworski)

The FAA has issued an emergency Airworthiness Directive (AD) to operators and owners of Boeing 737NGs to inspect the aircraft’s elevator tab control mechanisms following an incident on a Ryanair 737-800.

The FAA says the AD originated from a reported “failure of aft attach lugs on the left elevator tab control mechanism, which resulted in severe elevator vibration… Subsequent investigation revealed extensive damage to the elevator tab control system. Severe vibration in this attach point is suspected of allowing rapid wear of the joint, and resulted in failure of the attach lugs. This condition, if not corrected, could result in a loss of aircraft control and structural integrity.”

The AD came after Boeing issued an Alert Service Bulletin on March 12 which describes procedures for a detailed inspection to detect discrepancies of the inboard and outboard aft attach lugs of the elevator tab control mechanism, with 12 or 30 days to comply depending on the specific aircraft. The AD also requires reporting the inspection results to Boeing.

Advertisement
Advertisement

Both Qantas and Virgin Blue operate substantial fleets of 737NGs, but neither has said if they expect their schedules to be affected by the required inspections to their aircraft.

Steer your own in-flight experience – available on print and digital Whether our classic glossy magazine in your letterbox, daily news updates in your inbox, peeling back a few layers in the podcast or our monthly current affair reports, you can count on us to keep you up to date. Sign up today for just $99.95 for more exclusive offers here. Subscribe now at australianaviation.com.au.

Each day, our subscribers are more informed with the right information.

SIGN UP to the Australian Aviation magazine for high-quality news and features for just $99.95 per year