Under what circumstances might an airline defer an aircraft with a non-operational APU?

Remove and replace MD80 APU starter O-ring packing per instructions. Competitors will show judge torques and return to zero after usage. References: MD80 Figure ... Jan 4, 2013 ... Thus, if an APU aero gas turbine engine "incorporates" --. i.e., is developed or produced from - technologies controlled by ECCNs 9E003.a ... Sep 13, 2024 ... Auxiliary Power Units (APU) Approvals. The minimum performance standards that gas turbine auxiliary power units ( APU ) must meet are specified ... Auxiliary Power Unit Battery Fire, Japan Airlines. Boeing 787-8, JA829J, Boston, Massachusetts, January 7, 2013. NTSB/AIR-14/01. Washington, DC. Dec 12, 2023 ... An APU is a small, self-contained gas turbine engine, which is normally located in the tail cone of the aircraft in a fireproof, sound-reducing compartment. Nov 22, 1999 ... Technical Report on Propulsion System and Auxiliary Power Unit (APU) Related Aircraft Safety Hazards. A Notice by the Federal Aviation ... Mar 30, 2016 ... You may well normally start eng 1 from ground air then crossbleed start eng 2, but you can still crossbleed start eng 1 from eng 2 if necessary. Nov 13, 2023 ... Aviation Supervision/Traffic Center. Airport: Friedrichshafen ... This does not apply to the use of the APU for engine start-up. NOISE ... An auxiliary power unit (APU), is a device on a vehicle that provides energy for functions other than propulsion. They are commonly found on large aircraft ... May 9, 2023 ... Peculiarities of APU repair and overhaul. APUs are generally a minimum equipment list (MEL) item so the aircraft can continue to operate for a ...