Airworthiness Directive · Amendment 39-16572 · Fuselage
The Boeing Company Model 757-200, -200CB, and -300 Series Airplanes
Superseded. A later AD replaced this one: AD 2017-20-05. Comply with the one in force.
This AD applies to The Boeing Company Model 757-200, -200CB, and -300 series airplanes, certificated in any category, as identified in Boeing Special Attention Service Bulletin 757-53-0097, dated November 22, 2010.
We are adopting a new airworthiness directive (AD) for the products listed above. This AD requires repetitive inspections for cracking of the fuselage skin of the crown skin panel along the chem- milled step at stringers S-4 left and S-4 right, from stations (STA) 297 through 439, and repair if necessary. This AD also includes terminating action for the repetitive inspections of the repaired areas only. This AD was prompted by reports of cracking in the fuselage skin of the crown skin panel. We are issuing this AD to detect and correct fatigue cracking of the fuselage skin of the crown skin panel, which could result in pressure venting and consequent rapid decompression of the airplane.
Comply with this AD within the compliance times specified, unless already done.
At the applicable time specified in paragraph 1.E., “Compliance,” of Boeing Special Attention Service Bulletin 757-53-0097, dated November 22, 2010, except as required by paragraph (i) of this AD: Do an external detailed, sliding probe eddy current, or spot-probe-medium-frequency eddy current inspection for cracking of the fuselage skin of the crown skin panel along the chem-milled step at stringers S-4L (left) and S-4R (right), stations (STA) 297 through 439, in accordance with the Accomplishment Instructions of Boeing Special Attention Service Bulletin 757-53-0097, dated November 22, 2010. Repeat the applicable inspection thereafter at the interval specified in paragraph 1.E., “Compliance,” of Boeing Special Attention Service Bulletin 757-53-0097, dated November 22, 2010.
If any crack is found during any inspection required by paragraph (g) of this AD: Before further flight, repair using a method approved in accordance with the procedures specified in paragraph (j) of this AD. Doing the repair ends the repetitive inspections for the repaired area only.
(i) Where Boeing Special Attention Service Bulletin 757-53-0097, dated November 22, 2010, specifies a compliance time after the date on that service bulletin, this AD requires compliance within the specified compliance time after the effective date of this AD.
The aircraft, engines and makers this AD names, by the model designations in its text. A model listed here may still be outside the AD's serial ranges.
Aircraft
