Mon, Oct 06, 2014
AD NUMBER: 2014-20-07
PRODUCT: All the Boeing Company Model 747-200C and -200F series airplanes.
ACTION: Final Rule
SUMMARY: The FAA is superseding Airworthiness Directive (AD) 2010-03-05 for the products listed above. AD 2010-03-05 required, for the upper chords of the upper deck floor beam of section 41, an inspection for cracking of certain fastener holes, and corrective action if necessary; and repetitive replacements of the upper chords, straps (or angles), and radius fillers of certain upper deck floor beams and, for any replacement that is done, inspections for cracking, and corrective actions if necessary.
This new AD adds repetitive inspections of the upper chords of the upper deck floor beam of Section 42, repetitive replacements of the upper chords, post-replacement inspections, and corrective actions if necessary. This new AD also adds post-replacement inspections for section 41 and reduces certain compliance times. This AD was prompted by a determination that the upper deck floor beams are subject to widespread fatigue damage (WFD), the existing inspection program is not sufficient to maintain an acceptable level of safety, and the upper chords of the upper deck floor beam of section 42 are subject to the unsafe condition.
The FAA is issuing this AD to detect and correct cracking of the upper chords and straps (or angles) of the floor beams, which could lead to failure of the floor beams and consequent loss of controllability, rapid decompression, and loss of structural integrity of the airplane.
DATES: This AD is effective November 7, 2014.
FMI: AD
More News
Airport Rotating Beacon A visual NAVAID operated at many airports. At civil airports, alternating white and green flashes indicate the location of the airport. At military airports>[...]
Aero Linx: Fly for the Culture Fly For the Culture, Inc. is a 501(c)(3) non-profit organization that serves young people interested in pursuing professions in the aviation industry>[...]
Klyde Is Having Some Issues Comprehending The Fed's Priorities FMI: www.klydemorris.com>[...]
Also: Viasat-uAvionix, UL94 Fuel Investigation, AF Materiel Command, NTSB Safety Alert Norges Luftsportforbund chose Aura Aero's little 2-seater in electric trim for their next gli>[...]
Also: EP Systems' Battery, Boeing SAF, Repeat TBM 960 Order, Japan Coast Guard H225 Buy Despite nearly 100 complaints totaling millions of dollars of potential fraud, combined with>[...]