# Search: Howell Instruments, Inc

Release 2026-11-06. Search by a record's number, a model, or words in a record's text. Add &type= for one collection, paged: https://openairdocs.org/search.md?q=Howell%20Instruments%2C%20Inc&type=ad. Types: ad, text (AD text), proposed, saib, acs, ac, acpage (AC pages), stc, stctext (STC certificate text), model, sdr, ntsb (NTSB investigations), incident (FAA reports), repairstation (FAA repair stations). Add &sort=newest or &sort=oldest to order each collection by its own date instead of best match.

## In the text of advisory circulars (23)

- [AC 140-7K](https://openairdocs.org/ac/140-7K.md?from=318): FAA Certificated Repair Stations Directory · Page 318 · superseded or historical
  > …**HOWELL** **INSTRUMENTS** **INC** FE2R817K 3479 W VICKERY BLVD L-AAC L-INS FT WORTH TX 76107 HUTCH AVIATION CENTER **INC**…
- [AC 140-7M](https://openairdocs.org/ac/140-7M.md?from=120): FAA Certificated Repair Stations Directory · Page 120 · superseded or historical
  > …AVIONICS **INC** D-G AIRWAYS **INC** ACME **INC** E. 6313 RUTTER AVE. 400 EAGLE MOUNTAIN ROAD 4984 S. **HOWELL** AVENUE…
- [AC 140-7N](https://openairdocs.org/ac/140-7N.md?from=119): FAA Certificated Repair Stations Directory · Page 119 · superseded or historical
  > AC140-7N REPAIR STATIONS 08/28/2003 APPENDIX 1 B-E AEROSPACE **INC**-SMR TECHNOLOGIES WAYNES AVIONICS AND **INSTRUMENTS** DAWLEY…
- [AC 140-7R](https://openairdocs.org/ac/140-7R.md?from=67): FAA Certificated Repair Stations Directory · Page 67 · superseded or historical
  > …ROMULUS MI 48174 RENAISSANCE BALLOONS **INC** WATERFORD MI 48327 MQ6R649X 3800 WEST GRAND RIVER AVENUE UM2R218L L-AF **HOWELL** MI…

All 23: https://openairdocs.org/search.md?q=Howell%20Instruments%2C%20Inc&type=acpage

## Supplemental type certificates (11)

- [STC SA4522SW](https://openairdocs.org/stc/SA4522SW.md): Installation of Howell TGT instruments. · Howell Instruments, Inc
  > **Howell** **Instruments**, **Inc**
- [STC SA4429SW](https://openairdocs.org/stc/SA4429SW.md): Installation of Howell autotak RPM indicator. · Howell Instruments Inc
  > **Howell** **Instruments** **Inc**
- [STC SR00031NY](https://openairdocs.org/stc/SR00031NY.md): Installation of a Howell engine performance assurance monitoring system. · Howell Instruments, Inc
  > **Howell** **Instruments**, **Inc**
- [STC SA4576SW](https://openairdocs.org/stc/SA4576SW.md): Howell H922-8 oil pressure (digital) and oil temperature indicators. · Howell Instruments, Inc
  > **Howell** **Instruments**, **Inc**

All 11: https://openairdocs.org/search.md?q=Howell%20Instruments%2C%20Inc&type=stc

## In the text of STC certificates (10)

- [STC SR01163NY](https://openairdocs.org/stc/SR01163NY.md): Installation of Howell H2949-501 Engine Indicator/Monitor · Howell Instruments, Inc. · Certificate · Sep 12, 2012
  > …**Howell** **Instruments**, **Inc**. 8945 South Freeway Fort Worth, Texas 76140 H9EU Make : Aerospatiale Model : AS350B, 350B1, 350B2, 350BA…
- [STC SA4429SW](https://openairdocs.org/stc/SA4429SW.md): Installation of Howell autotak RPM indicator. · Howell Instruments Inc · Certificate · Feb 9, 2004
  > …SA76000SC-T SHC Number SA44295W This Certificate issued to **Howell** **Instruments**, **Inc**. 3479 W. Vickery Blvd Fort Worth…
- [STC SA4624SW](https://openairdocs.org/stc/SA4624SW.md): Replace existing N1, N2 and ITT indicators with Howell autotak and autotemp indicators. · Howell Instruments Inc · Certificate · Jan 5, 2005
  > …SA7916SC-T SHC Number SA4624SW This Certificate issued to **Howell** **Instruments**, **Inc**. 3479 W. Vickery Blvd. Fort Worth…
- [STC SA2377SW](https://openairdocs.org/stc/SA2377SW.md): Install BH185R-289 EGT temperature indicator system. · Howell Instruments, Inc · Certificate · Nov 9, 1976
  > …S TSP-213 This certificate, issued to **Howell** **Instruments**, **Inc**. 3479 W. Vickery Blvd. Fort Worth, Texas 76107…

All 10: https://openairdocs.org/search.md?q=Howell%20Instruments%2C%20Inc&type=stctext

## NTSB investigations (10)

- [NTSB FTW99LA108](https://openairdocs.org/ntsb/FTW99LA108.md): Cessna 172M · Midlothian, TX · Apr 5, 1999 · N8963V · No injuries
  > …The airplane was owned by Texsan Aviation **Inc**., of Gordonville, Texas, and operated by **Howell** Aircraft Services **Inc**…
- [NTSB CEN20LA215](https://openairdocs.org/ntsb/CEN20LA215.md): Mitsubishi MU2B · Sioux Falls, SD · Jun 7, 2020 · N44MX · 1 fatal
  > …was completed on March 16, 2020, with **Howell** Enterprises, **Inc**. At the time of the accident, the pilot…
- [NTSB CHI95FA050](https://openairdocs.org/ntsb/CHI95FA050.md): Agusta A109A II · Ann Arbor, MI · Dec 1, 1994 · N1QF · 3 fatal
  > …Joseph Hospital in visual meteorological conditions about 1003, en route to **Howell**, Michigan. The purpose of the flight…
- [NTSB DEN01FA113](https://openairdocs.org/ntsb/DEN01FA113.md): Mitsubishi MU-2B-20 · Cerrillos, NM · Jun 10, 2001 · N187AF · 2 fatal
  > …Visual meteorological conditions prevailed, and an **instrument** flight rules (IFR) flight plan had been filed for the personal…

All 10: https://openairdocs.org/search.md?q=Howell%20Instruments%2C%20Inc&type=ntsb

## FAA accident and incident reports (1)

- [Accident 19990405003109A](https://openairdocs.org/incident/19990405003109A.md): Cessna 172M · Midlothain, TX · Apr 5, 1999 · N8963V · Substantial damage
  > …The airplane was owned by texasan aviation **inc**, of gordonville, Texas, and operated by **howell** aircraft **inc**., of…

## FAA repair stations (1)

- [FE2R817K](https://openairdocs.org/faa-repair-station/FE2R817K/howell-instruments-inc.md): Howell Instruments Inc · Fort Worth, TX