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Avionics

STC ST00504LA

FAA DRS lists ST00504LA as Current · Reissued, held by Northrop Grumman Systems Corporation, for Boeing 747-100 Series, Boeing 747-200B Series, and Boeing 747-200C Series, and 1 more aircraft configuration. Recorded change: Modification of Litton LTN-92 and LTN-72 Inertial Navigation Systems (INS) to implement the Area Navigation (RNAV) updating capability. Snapshot dated June 30, 2026.

FAA-listed holder
Northrop Grumman Systems Corporation
Aircraft configurations
4
FAA revision date
FAA status
Current · Reissued

Recorded modification

What the FAA record covers

ST00504LA identifies the approval, recorded holder, named aircraft, and modification scope. It does not confirm kit availability, serial-number effectivity, data rights, price, or installation authority.

Applicability

Aircraft named in FAA DRS

Named aircraft: Boeing 747-100 Series, Boeing 747-200B Series, and Boeing 747-200C Series, and 1 more aircraft configuration. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Boeing 747-100 SeriesA20WEBoeing 747-200B SeriesA20WEBoeing 747-200C SeriesA20WEBoeing 747-200F SeriesA20WE

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