The U.S. aircraft register, updated daily
Parts

Support Cowl

No failure report names the support cowl. 10 FAA approvals let 4 companies make a replacement support cowl, Rohr INC (See Goodrich Aerostructures) holding the most (3).

Approved replacement parts 10 parts manufacturer approvals

A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a support cowl and sell it as an approved part for the models named. These are the companies holding such approvals for a support cowl:

For these models most: Thrush Aircraft Inc S-2 (2), Ayres Corporation S-2 (2), Cessna 172 Skyhawk (1), Air Tractor Inc AT-802 (1), Air Tractor Inc AT-602 (1).

MakerPartReplacesFitsGrantedStatus
Airforms LLCSUPPORT ASSY – COWL SNUBBER AF0552115-50552115-5Textron Aviation Inc. 172P, 172Q, 172R2024-12-19current
Goodrich Aerostructures (Formerly Rohr INC)Support Rear Cowl LJ31754LJ31754Rolls-Royce RB211- 524D4-19, 524D4-B-19, 524D4X-192008-05-13current
Goodrich Aerostructures (Formerly Rohr INC)Support Rear Cowl LJ31755LJ31755Rolls-Royce RB211- 524D4-19, 524D4-B-19, 524D4X-192008-05-13current
Goodrich Aerostructures (Formerly Rohr INC)Support Rear Cowl LJ31753LJ31753Rolls-Royce RB211- 524D4-19, 524D4-B-19, 524D4X-192008-05-13current
Cascade Aircraft Conversions LLCSupport Cowl Installation PTTH4400PTTH4400Thrush Aircraft S2R-T34, S2R-T15, S2R-T112006-06-29current
Cascade Aircraft Conversions LLCSupport Cowl Installation PT34400PT34400Air Tractor AT-602, AT-802, AT-802A2006-06-28current
Cascade Aircraft Conversions LLCSupport Cowl Installation TH4400TH4400Thrush Aircraft S-2R, S-2R-R3S, -R13402006-06-27current
Rohr INC (See Goodrich Aerostructures)Support Rear Cowl LJ31753LJ31753Rolls-Royce RB211- 524G2-19, 524G3-19, 524H-362004-06-21current
Rohr INC (See Goodrich Aerostructures)Support Rear Cowl LJ31755LJ31755Rolls-Royce RB211- 524G2-19, 524G3-19, 524H-362004-06-21current
Rohr INC (See Goodrich Aerostructures)Support Rear Cowl LJ31754LJ31754Rolls-Royce RB211- 524G2-19, 524G3-19, 524H-362004-06-21current

Sources: the FAA's service difficulty reports since 1995 (a report is a part that failed and was fixed, as filed by an airline, repair station or owner; the count shows reporting as much as reliability) and the parts manufacturer approvals in the FAA's Dynamic Regulatory System. The part name is the reporters' and the approval holders' own words, reduced to the first plain words so that spellings meet.