3 ADs indexed for Transcontinental and Western Air, Inc. aircraft.
BOEING Model B-17F & G Airplanes
Unsafe Condition: Cracking in the front spar lower cap center section, part number 753424-2, around the bolt hole in both the forward and aft wall of the tube, particularly at the top and bottom portions.
Why matched: BOEING Model B-17F & G Airplanes
BOEING Model B-17F & G Airplanes
Unsafe Condition: Cracking in the rear spar lower cap center section, part numbers 75-3425-2 or 85-3425-2, around the bolt holes in both the forward and aft walls of the tube.
Why matched: BOEING Model B-17F & G Airplanes
Airworthiness Directives; Boeing Model B-17E, F, and G Airplanes
Unsafe Condition: Cracking and corrosion of the wing spar chords, bolts and bolt holes of the spar chords, and wing terminals may reduce structural integrity of the wing.
Why matched: Airworthiness Directives; Boeing Model B-17E, F, and G Airplanes
