IFR Certification Service

What is IFR Certification?

Why my Aircraft need it?

IFR (Instrument Flight Rules) altimeter certification is a process by which an aircraft’s altimeter is inspected and calibrated to ensure that it provides accurate altitude readings in instrument meteorological conditions. The altimeter is a critical instrument for IFR flight, as it provides the pilot with information on the aircraft’s altitude relative to sea level, which is necessary for maintaining proper clearance from other aircraft and terrain.

The FAA requires that altimeters in IFR-certified aircraft be inspected and calibrated every two years, or as part of an aircraft’s regular inspection cycle, to ensure that they are providing accurate altitude readings. This inspection and calibration process is typically performed by a certified instrument repair station, and may involve the use of specialized test equipment to compare the altimeter readings to known standards.

During the inspection and calibration process, the technician will check the altimeter for proper operation and adjust it as necessary to ensure that it is providing accurate altitude readings. They may also inspect and test other related instruments and systems, such as the static system, which provides the pressure reference for the altimeter.

The IFR altimeter certification process is critical for maintaining the safety of IFR flight, as inaccurate altitude readings can lead to a loss of separation between aircraft or collisions with terrain. By requiring regular inspection and calibration of the altimeter and other related instruments and systems, the FAA aims to ensure that aircraft are equipped and maintained to operate safely in instrument meteorological conditions.

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