Capability
Flight Instruments
Primary and standby flight instrumentation, including the mechanical instruments that are getting harder to support every year.
Overview
What we see, and what we do.
Standby instruments are the ones nobody thinks about until they are the only ones left. They also tend to be the oldest equipment on the aircraft, which means they are exactly the units a manufacturer has stopped supporting and a shop is most likely to decline.
We repair them. A mechanical attitude indicator with a worn bearing is a repairable instrument, not a write-off, and keeping it serviceable is usually a fraction of the cost of the alternative.
Equipment We Service
- Attitude Indicator
- Attitude Director Indicator
- Horizontal Situation Indicator
- Radio Magnetic Indicator
- Turn and Slip Indicator
- Turn Coordinator
- Standby Attitude Indicator
- Magnetic Compass
- Course Deviation Indicator
- Flight Director
Faults We See Most
- Attitude indicator slow to erect or failing to erect
- Precession or drift in level flight
- Bearing noise or rumble on spin-up
- HSI heading disagreement
- Flag not retracting on power-up
- Illumination failure or uneven panel lighting
Recognise one of these? Describe what was observed rather than what you think has failed — it is frequently a different unit.
Common Questions
Flight Instruments,
asked in practice.
- Is a mechanical attitude indicator worth repairing?
- Nearly always. A worn bearing, a tired motor or a sticking erection mechanism are repairable mechanical faults. Treating the instrument as disposable is a habit inherited from equipment that genuinely cannot be opened — most of these can.
- My standby instrument is out of production. What are the options?
- Repair is usually still possible even when the manufacturer no longer supports the unit, because the failure is mechanical rather than a supply problem. Send the part number and we will tell you honestly whether it is realistic before you plan around a replacement.
Next Step
Flight Instruments on the bench?
Send us the part number.
Tell us the aircraft, the symptom and the number on the dataplate. We will confirm whether we service it and what the options are.