Tachometer
181 failure reports named the tachometer in the last ten years, 291 since 1995, most often on the Robinson R44; the condition most often found was "defective". 35 FAA approvals let 7 companies make a replacement tachometer, Ametek Aerospace holding the most (10). The reports call it "tachometer", "n1 tachometer".
Reports by year
Reports by year, as a table
| reports | |
|---|---|
| 1995 | 6 |
| 1996 | 8 |
| 1997 | 6 |
| 1998 | 6 |
| 1999 | 9 |
| 2000 | 10 |
| 2001 | 8 |
| 2002 | 5 |
| 2003 | 3 |
| 2004 | 2 |
| 2005 | 4 |
| 2006 | 7 |
| 2007 | 1 |
| 2008 | 1 |
| 2010 | 2 |
| 2011 | 7 |
| 2012 | 5 |
| 2013 | 11 |
| 2014 | 5 |
| 2015 | 4 |
| 2016 | 5 |
| 2017 | 7 |
| 2018 | 8 |
| 2019 | 65 |
| 2020 | 45 |
| 2021 | 7 |
| 2022 | 8 |
| 2023 | 11 |
| 2024 | 15 |
| 2025 | 7 |
| 2026 | 3 |
Which system the reports file it under last ten years
Reports by system, as a table
| reports | |
|---|---|
| Rotorcraft systems | 104 |
| Landing gear | 64 |
| Engine | 9 |
| Instruments and avionics | 3 |
| Propeller | 1 |
Models most often reporting it last ten years
How it failed the condition found, last ten years
defective33failed25inoperative25faulted19faulty18malfunctioned16intermittent13erratic8inaccurate5fault message3
Conditions found, as a table
| reports | |
|---|---|
| defective | 33 |
| failed | 25 |
| inoperative | 25 |
| faulted | 19 |
| faulty | 18 |
| malfunctioned | 16 |
| intermittent | 13 |
| erratic | 8 |
| inaccurate | 5 |
| fault message | 3 |
Engines most often reporting it
Approved replacement parts 35 parts manufacturer approvals
A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a tachometer and sell it as an approved part for the models named. These are the companies holding such approvals for a tachometer:
Ametek Aerospace 10L3 Aviation Products INC 9Castleberry Instruments & Avionics LLC 9Mitchell Aircraft Prod INC 4Vickers INC, Fluid Control and Actuation Div 1Rosemount Aerospace INC 1Eaton Aerospace Sterer Engineering 1
For these models most: Mcdonnell Douglas DC-10 (10), Maule MX-7 (4), Maule M-6 (4), Maule M-5 (4), Cessna T210 Turbo Centurion (3), Dassault MYSTERE-FALCON 50 (2), Daher (Socata) TB21 (2), Daher (Socata) TB 9 (2), Daher (Socata) TB-20 (2), Daher (Socata) TB 10 (2), Cessna P210 Pressurized Centurion (2), Mooney M-20 (1).
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Rosemount Aerospace INC | Tachometer 472404 | Boeing 472404 | Boeing 767-200 Series, 767-300 Series,... | 2002-11-18 | current |
| Eaton Aerospace Sterer Engineering | Tachometer 57530-2 | 57530-2 | Dassault Aviation MYSTERE FALCON 50 | 2000-11-07 | current |
| Vickers INC, Fluid Control and Actuation Div | Tachometer 57530-2 | Dassault Aviation 57530-2 | Dassault Aviation Mystere Falcon 50 | 1998-09-27 | current |
| Ametek Aerospace | N1 Tachometer, APU, Indicator 1822-521286 | - | McDonnell Douglas DC-10-30, -30F, -40 | 1992-06-15 | current |
| Ametek Aerospace | N1 Tachometer, APU, Indicator 1822-521142 | McDonnell Douglas DC-10-10, -15, -30 | 1992-06-15 | current | |
| Ametek Aerospace | N2 Tachometer, APU, Indicator 1822-521143 | - | McDonnell Douglas DC-10-10, -15, -30 | 1992-06-15 | current |
| Ametek Aerospace | N1 Tachometer, APU, Indicator 1822-521142 | - | McDonnell Douglas DC-10-10, -15, -30 | 1992-06-15 | current |
| Ametek Aerospace | N2 Tachometer, APU, Indicator 1822-521143 | McDonnell Douglas DC-10-10, -15, -30 | 1992-06-15 | current | |
| Ametek Aerospace | N2 Tachometer, APU, Indicator 1822-520768 | McDonnell Douglas DC-10-10, -15, -30 | 1992-06-15 | current | |
| Ametek Aerospace | N1 Tachometer, APU, Indicator 1822-520580 | McDonnell Douglas DC-10-10, -15, -30 | 1992-06-15 | current | |
| Ametek Aerospace | N1 Tachometer, APU, Indicator 1822-520580 | - | McDonnell Douglas DC-10-10, -15, -30 | 1992-06-15 | current |
| Ametek Aerospace | N2 Tachometer, APU, Indicator 1822-520768 | - | McDonnell Douglas DC-10-10, -15, -30 | 1992-06-15 | current |
| Ametek Aerospace | N1 Tachometer, APU, Indicator 1822-521286 | McDonnell Douglas DC-10-30, -30F, -40 | 1992-06-15 | current | |
| Mitchell Aircraft Prod INC | Tachometer 98480-23 | Original Part | Maule M-5-235C, M-6-235, MX-7-235 | 1992-01-17 | current |
| Mitchell Aircraft Prod INC | Tachometer 98480-24 | Original Part | Maule M-5-180C, M-6-180, MX-7-180 | 1992-01-17 | current |
| Mitchell Aircraft Prod INC | Tachometer 98480-23 Dwcr. : 98480-23... | Original Part | Maule M-5-235C, M-6-235, MX-7-235 | 1992-01-17 | current |
| Mitchell Aircraft Prod INC | Tachometer 98480-24 Dwa.: 98480-23 to... | Original Part | Maule M-5-180C, M-6-180, MX-7-180 | 1992-01-17 | current |
| L3 Aviation Products INC | Tachometer "3", aircraft 3310-00069 | Classic 50735 | Waco YMF-5 | 1990-04-15 | current |
| L3 Aviation Products INC | Tachometer "3", Aircraft with light prov. Dwg 3330-00014 | Aerospatiale 30S101-03 | SOCATA TB20, TB21 | 1989-02-01 | current |
| L3 Aviation Products INC | Tachometer "3", aircraft Dwg 3320-00024 | Replacement for various aircraft as an alternate | Reims Aviation S.A. FA150, FR172, F172 | 1989-02-01 | current |
| L3 Aviation Products INC | Tachometer "3", Aircraft with light prov. Dwg 3330-00013 | Aerospatiale 30S101-02 | SOCATA TB10 | 1989-02-01 | current |
| L3 Aviation Products INC | Tachometer "3", aircraft Dwg 3320-00023 | Cessna C668020-0219 | Reims Aviation S.A. FA150, F150 | 1989-02-01 | current |
| L3 Aviation Products INC | Tachometer "3", aircraft Dwg 3320-00046 | Replacement for various aircraft as an alternate | Mooney Aircraft M20J, M20A, M20B | 1989-02-01 | current |
| L3 Aviation Products INC | Tachometer "3", aircraft Dwg 3320-00045 | Replacement for various aircraft as an alternate | Reims Aviation S.A. FR172 | 1989-02-01 | current |
| L3 Aviation Products INC | Tachometer "3", Aircraft with light prov. Dwg 3330-00012 | Aerospatiale 30S101-01 | SOCATA TB9 | 1989-02-01 | current |
| L3 Aviation Products INC | Tachometer "3", aircraft Dwg 3320-00008 | Cessna C668020-0216 | Reims Aviation S.A. FR172 | 1989-02-01 | current |
| Castleberry Instruments & Avionics LLC | Tachometer 3" Dwg 3310-00031 | Replacement for various aircraft as an alternate | Aeromere S.A. Falco F.8L | 1988-09-06 | current |
| Castleberry Instruments & Avionics LLC | Tachometer 3" Dwg 3320-00022 | Cessna C668020-0218 | Reims Aviation S.A. F172 | 1988-09-06 | current |
| Castleberry Instruments & Avionics LLC | Tachometer 3" Dwg 3320-00042 | Cessna C668020-0226 | Cessna T210, P210 | 1988-09-06 | current |
| Castleberry Instruments & Avionics LLC | Tachometer 3" Dwg 3330-00004 | Cessna C668020-L0226 | Cessna T210, P210 | 1988-09-06 | current |
| Castleberry Instruments & Avionics LLC | Tachometer 3" Dwg 3330-00014 | Aerospatiale 30S101-03 | SOCATA TB20, TB21 | 1988-09-06 | current |
| Castleberry Instruments & Avionics LLC | Tachometer 3" Dwg 3330-00013 | Aerospatiale 30S101-02 | SOCATA TB10 | 1988-09-06 | current |
| Castleberry Instruments & Avionics LLC | Tachometer 3" Dwg 3330-00012 | Aerospatiale 30S101-01 | SOCATA TB9 | 1988-09-06 | current |
| Castleberry Instruments & Avionics LLC | Tachometer 3" Dwg 3310-00040 | Sequoia 145-17 | Aeromere S.A. Falco F.8L | 1988-09-06 | current |
| Castleberry Instruments & Avionics LLC | Tachometer 3" Dwg 3320-00020 | Cessna C668020-0206 | Cessna T210, TU206 | 1988-09-06 | 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.