The U.S. aircraft register, updated daily
Parts · Instruments and avionics

Pa System

4 failure reports named the pa system in the last ten years, 146 since 1995, most often on the Airbus A319; the condition most often found was "inoperative". 4 FAA approvals let 1 company make a replacement pa system, Air Comm Systems INC holding the most (4).

Reports by year

01631466219952010201522025
Reports by year, as a table
reports
19952
19981
19991
20071
20081
20107
20117
201237
201362
201420
20153
20162
20252

Which system the reports file it under last ten years

Reports by system, as a table
reports
Instruments and avionics4

How it failed the condition found, last ten years

inoperative2malfunctioned1weak1
Conditions found, as a table
reports
inoperative2
malfunctioned1
weak1

Approved replacement parts 4 parts manufacturer approvals

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

For these models most: Messerschmitt-Bolkow-Blohm BK 117 (2).

MakerPartReplacesFitsGrantedStatus
Air Comm Systems INCPA System ACS PA100FRocky Mountain Helicopters ACS PA100FAirbus Helicopters... MBB-BK 117 A-1, MBB-BK 117 A-3,...2017-03-05current
Air Comm Systems INCPA System ACS PA100FRocky Mountain Helicopters ACS PA100FMBB BK-117 B1, BK-117 A3, BK 117 A12011-11-03current
Air Comm Systems INCPA System ACS PA100FRocky Mountain Helicopters STC SH3884NM P/N ACS PA100FEurocopter Deutschland BK-117 B1, BK-117 A3, BK-117 A12006-10-17current
Air Comm Systems INCPA System ACS PA100FRocky Mountain Helicopters ACS PA100FEurocopter Deutschland MBB BK-177 Series1996-04-16current

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.