Search report text, read a short matching passage, then open the source page.
Exact phrases match first; otherwise all words must occur close together. Six excerpts maximum. Text extraction cannot search image-only charts. Warsaw uses a report transcription with missing figures and appendices.
8 matching PDF pages. Showing 6 short source excerpts. Open the document for full context.
Printed page x. PDF page 10.
recovered. Multiple components associated with the left MED plug installation, including four bolts that would secure the left MED plug from moving upward vertically, were not located. What We Found The National Transportation Safety Board found that the four boltsOpen official document at PDF page 10NTSB AIR-25-04: In-Flight Separation of Left Mid Exit Door Plug, Alaska Airlines Flight 1282
Printed page 8. PDF page 22.
fittings.15 Multiple components associated with the left MED plug installation, including four bolts that would secure the left MED plug from moving vertically, were not located. The NTSB Materials Laboratory examined the left MED plug and various components associated withOpen official document at PDF page 22NTSB AIR-25-04: In-Flight Separation of Left Mid Exit Door Plug, Alaska Airlines Flight 1282
Printed page 12. PDF page 26.
plug can be opened for airplane maintenance and inspection purposes, by first removing four bolts that secure it from moving upward vertically (discussed in more detail later in this section). The four bolts that secure an MED plug from movingOpen official document at PDF page 26NTSB AIR-25-04: In-Flight Separation of Left Mid Exit Door Plug, Alaska Airlines Flight 1282
Printed page 45. PDF page 59.
Boeing personnel needed to open the left MED plug, which inherently involved removing the four bolts (and associated castle nuts, cotter pins, and washers) that secured the plug. Per the guidance specified in Boeing's business process instruction (BPI) “Perform PartOpen official document at PDF page 59NTSB AIR-25-04: In-Flight Separation of Left Mid Exit Door Plug, Alaska Airlines Flight 1282
Printed page 79. PDF page 93.
crewmembers' actions in response to the emergency (section 2.2.1), and the evidence that the four bolts that secure the left MED plug from moving vertically were missing before the accident flight (section 2.2.2). The airplane's manufacturing history related toOpen official document at PDF page 93NTSB AIR-25-04: In-Flight Separation of Left Mid Exit Door Plug, Alaska Airlines Flight 1282
Printed page 84. PDF page 98.
stop pads. On a normal MED plug installation, plug vertical movement is prevented by four bolts: two vertical movement arrestor bolts and two upper guide track bolts. Based on a Boeing engineering review, the presence of only one vertical movementOpen official document at PDF page 98NTSB AIR-25-04: In-Flight Separation of Left Mid Exit Door Plug, Alaska Airlines Flight 1282