ATA 85 — Reciprocating Engine

20,859 parts classified under this chapter

Reliability rollup

91%Median scrap propensity

2,637 parts · 5,796 SDR reports

From FAA Service Difficulty Reports

Part Number	Description	Manufacturer	Airframe	ATA	Category	Status
44-20 P07	Stud, 7/16 Dia. Fine Thread	—	—	85	Engine Accessories	OEM
44-20 P12	Stud, 7/16 Dia. Fine Thread	—	—	85	Engine Accessories	OEM
44-21 P03	Stud, 7/16 Dia. Fine Thread	—	—	85	Engine Accessories	OEM
44-21 P07	Stud, 7/16 Dia. Fine Thread	—	—	85	Engine Accessories	OEM
44-21 P12	Stud, 7/16 Dia. Fine Thread	—	—	85	Engine Accessories	OEM
44-22	Stud, 7/16 Dia. Fine Thread	—	—	85	Engine Accessories	OEM
44-22	Stud, 7/16 Dia. Fine Thread	—	—	85	Engine Accessories	OEM
44-22 P03	Stud, 7/16 Dia. Fine Thread	—	—	85	Engine Accessories	OEM
44-22 P07	Stud, 7/16 Dia. Fine Thread	—	—	85	Engine Accessories	OEM
44-22 P12	Stud, 7/16 Dia. Fine Thread	—	—	85	Engine Accessories	OEM
44-23	Stud, 7/16 Dia. Fine Thread	—	—	85	Engine Accessories	OEM
44-23	Stud, 7/16 Dia. Fine Thread	—	—	85	Engine Accessories	OEM
44-23 P03	Stud, 7/16 Dia. Fine Thread	—	—	85	Engine Accessories	OEM
44-23 P07	Stud, 7/16 Dia. Fine Thread	—	—	85	Engine Accessories	OEM
44-23 P12	Stud, 7/16 Dia. Fine Thread	—	—	85	Engine Accessories	OEM
44-24	Stud, 7/16 Dia. Fine Thread	—	—	85	Engine Accessories	OEM
44-24	Stud, 7/16 Dia. Fine Thread	—	—	85	Engine Accessories	OEM
44-24 P03	Stud, 7/16 Dia. Fine Thread	—	—	85	Engine Accessories	OEM
44-24 P07	Stud, 7/16 Dia. Fine Thread	—	—	85	Engine Accessories	OEM
44-24 P12	Stud, 7/16 Dia. Fine Thread	—	—	85	Engine Accessories	OEM
44-25	Stud, 7/16 Dia. Fine Thread	—	—	85	Engine Accessories	OEM
44-25	Stud, 7/16 Dia. Fine Thread	—	—	85	Engine Accessories	OEM
44-25 P03	Stud, 7/16 Dia. Fine Thread	—	—	85	Engine Accessories	OEM
44-25 P07	Stud, 7/16 Dia. Fine Thread	—	—	85	Engine Accessories	OEM
44-25 P12	Stud, 7/16 Dia. Fine Thread	—	—	85	Engine Accessories	OEM
44-26 P03	Stud, 7/16 Dia. Fine Thread	—	—	85	Engine Accessories	OEM
44-26 P07	Stud, 7/16 Dia. Fine Thread	—	—	85	Engine Accessories	OEM
44-26 P12	Stud, 7/16 Dia. Fine Thread	—	—	85	Engine Accessories	OEM
44-27 P03	Stud, 7/16 Dia. Fine Thread	—	—	85	Engine Accessories	OEM
44-27 P07	Stud, 7/16 Dia. Fine Thread	—	—	85	Engine Accessories	OEM
44-27 P12	Stud, 7/16 Dia. Fine Thread	—	—	85	Engine Accessories	OEM
44-28	Stud, 7/16 Dia. Fine Thread	—	—	85	Engine Accessories	OEM
44-28	Stud, 7/16 Dia. Fine Thread	—	—	85	Engine Accessories	OEM
44-28 P03	Stud, 7/16 Dia. Fine Thread	—	—	85	Engine Accessories	OEM
44-28 P07	Stud, 7/16 Dia. Fine Thread	—	—	85	Engine Accessories	OEM
44-28 P12	Stud, 7/16 Dia. Fine Thread	—	—	85	Engine Accessories	OEM
44-29	Stud, 7/16 Dia. Fine Thread	—	—	85	Engine Accessories	OEM
44-29	Stud, 7/16 Dia. Fine Thread	—	—	85	Engine Accessories	OEM
44-29 P03	Stud, 7/16 Dia. Fine Thread	—	—	85	Engine Accessories	OEM
44-29 P07	Stud, 7/16 Dia. Fine Thread	—	—	85	Engine Accessories	OEM
44-29 P12	Stud, 7/16 Dia. Fine Thread	—	—	85	Engine Accessories	OEM
44-30 P03	Stud, 7/16 Dia. Fine Thread	—	—	85	Engine Accessories	OEM
44-30 P07	Stud, 7/16 Dia. Fine Thread	—	—	85	Engine Accessories	OEM
44-30 P12	Stud, 7/16 Dia. Fine Thread	—	—	85	Engine Accessories	OEM
44-31 P03	Stud, 7/16 Dia. Fine Thread	—	—	85	Engine Accessories	OEM
44-31 P07	Stud, 7/16 Dia. Fine Thread	—	—	85	Engine Accessories	OEM
44-31 P12	Stud, 7/16 Dia. Fine Thread	—	—	85	Engine Accessories	OEM
44-32	Stud, 7/16 Dia. Fine Thread	—	—	85	Engine Accessories	OEM
44-32	Stud, 7/16 Dia. Fine Thread	—	—	85	Engine Accessories	OEM
44-32 P03	Stud, 7/16 Dia. Fine Thread	—	—	85	Engine Accessories	OEM