FAA proposes inspection rule for Boeing 757 fuselage repair cracks
AI-generated summary for informational purposes only. Not legal advice. See the original source for the authoritative text.
This proposed FAA rule would require operators of all Boeing 757-200, -200PF, -200CB, and -300 airplanes to inspect certain existing reinforcing repairs in the fuselage frame lower lobe areas for cracks. If damage is found, operators would have to carry out follow-up repair actions before further flight using FAA-approved methods or Boeing instructions. The rule is aimed at preventing hidden cracking in repaired structure that could weaken the airplane’s load-carrying ability. Airlines and maintenance teams should review the affected repair areas, plan for inspection work, and be ready to respond to any findings. The FAA says the proposal could affect 427 U.S.-registered airplanes, with inspection costs estimated at up to $22,355 per aircraft.
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Key Changes
- Requires inspections of certain reinforcing repairs in the fuselage frame lower lobe areas on all affected Boeing 757 models.
- Requires follow-up repair or other on-condition actions if cracks or damage are found.
- Sets a comment deadline of June 15, 2026, before the rule is finalized.
Obligations
What this law requires
Operators of Boeing Model 757-200, -200PF, -200CB, and -300 series airplanes must perform a general visual inspection for any existing reinforcing repairs in the fuselage frame lower lobe areas in sections 43 and 46, between stringers S-20 and S-25 from STA 440 to STA 820 and between S-25 and S-28 from STA 1300 to STA 1661, on both the left and right sides of the airplane, in accordance with Boeing Alert Requirements Bulletin 757-53A0129 RB.
Operators of Boeing Model 757-200, -200PF, -200CB, and -300 airplanes must perform a general visual inspection for any existing reinforcing repairs in the fuselage frame lower lobe areas in sections 43 and 46 on both left and right sides, in accordance with Boeing Alert Requirements Bulletin 757-53A0129 RB and its Accomplishment Instructions, at the applicable compliance times in the bulletin.
Operators of Boeing Model 757-200, -200PF, -200CB, and -300 airplanes must perform the required inspections for existing reinforcing repairs in the fuselage frame lower lobe areas at the compliance times specified in Boeing Alert Requirements Bulletin 757-53A0129 RB, dated December 8, 2025, and carry out all applicable actions in accordance with its Accomplishment Instructions.
Operators of all Boeing Model 757-200, -200PF, -200CB, and -300 series airplanes must perform the required general visual inspection for existing reinforcing repairs in the fuselage frame lower lobe areas in sections 43 and 46, between stringers S-20 and S-25 from STA 440 to STA 820 and between S-25 and S-28 from STA 1300 to STA 1661, on both the left and right sides of the airplane, at the compliance times specified in Boeing Alert Requirements Bulletin 757-53A0129 RB.
If the required inspection finds a condition requiring Boeing repair instructions, operators must perform the repair and any applicable on-condition actions before further flight using a method approved under the AD’s AMOC procedures.