STC SE00014EN

Installation of Altair Avionics Corporation CrossCheck Engine Monitor Kit P/N HUMS-K-071-1, Rev A. CrossCheck Monitor is designed as non-essential equipment and cannot be used to replace or supplement manual recording of engine operating data required by FAA approved operating specs and maintenance programs.

Historical Reissued Engine Rev 08/21/2002 View PDF on drs.faa.gov ↗

What is an STC?

A Supplemental Type Certificate authorizes a major modification or alteration to an FAA-certificated aircraft. STCs are how operators legally install new avionics, change fuel systems, add floats, swap engines, etc. — every change beyond a minor modification needs one.

Applicable aircraft (41)

Certification basis — 14 CFR

Part 21

Specific sections

Sec. 111
Sec. 113
Sec. 115
Sec. 117
Sec. 119
Sec. 120

The STC PDF on drs.faa.gov is the authoritative document — it lists installation instructions, ICA requirements, and any limitations. Open PDF ↗