Counter

21 failure reports named the counter in the last ten years, 28 since 1997, most often on the Boeing 737; the condition most often found was "damaged". 4 FAA approvals let 1 company make a replacement counter, Akv INC holding the most (4).

Reports by year

Reports by year, as a table

	reports
1997	1
1998	2
2003	1
2013	1
2014	1
2015	1
2017	3
2019	1
2020	1
2022	1
2023	1
2024	10
2025	3
2026	1

Which system the reports file it under last ten years

Cabin, seats and restraints13Electrical power4Instruments and avionics3Flight controls1

Reports by system, as a table

	reports
Cabin, seats and restraints	13
Electrical power	4
Instruments and avionics	3
Flight controls	1

Models most often reporting it last ten years

Boeing 73710Airbus A3205Airbus A3193Airbus A3212Boeing 7571

Models most reported, as a table

	reports
Boeing 737	10
Airbus A320	5
Airbus A319	3
Airbus A321	2
Boeing 757	1

How it failed the condition found, last ten years

damaged6smoke5cracked2faulty2contaminated1corroded1dented1failed1melted1odor1

Conditions found, as a table

	reports
damaged	6
smoke	5
cracked	2
faulty	2
contaminated	1
corroded	1
dented	1
failed	1
melted	1
odor	1

Approved replacement parts 4 parts manufacturer approvals

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

Akv INC 4

For these models most: Bell UH-1 Huey (Iroquois) (2), Bell 205 (2), Bell 204 (2), Airbus Helicopters AS350 AStar (Écureuil), now H125 (2).

Maker	Part	Replaces	Fits	Granted	Status
Akv INC	Counter, N1/N2 Cycle UH1T53CC	Modification Part	Bell 204, 205, 210	2009-12-15	current
Akv INC	Counter, Ng Cycle 350NGTEC	Modification Part	Eurocopter AS350B, B1, B2	2009-12-15	current
Akv INC	Counter, Ng Cycle 350NGTEC	Modification Part	Eurocopter France AS350B, B1, B2	2009-03-12	current
Akv INC	Counter, N1/N2 Cycle UH1T53CC	Modification Part	Bell 204, 205, 210	2009-03-12	current

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.