PL replacement for MD80 tritium signs

Aircraft Engineering and Aerospace Technology

ISSN: 0002-2667

Article publication date: 4 July 2008



(2008), "PL replacement for MD80 tritium signs", Aircraft Engineering and Aerospace Technology, Vol. 80 No. 4.



Emerald Group Publishing Limited

Copyright © 2008, Emerald Group Publishing Limited

PL replacement for MD80 tritium signs

Article Type: Equipment and software From: Aircraft Engineering and Aerospace Technology: An International Journal, Volume 80, Issue 4

According to STG Aerospace, MD80 operators can now replace their expensive tritium emergency signage with its “fit for life” photoluminescent (PL) signage, following EASA approval.

The SafTGlo TR exit sign is an extension to STG’s SafTGlo range of PL floorpath marking systems. The EASA approval permits the use of SafTGlo TR to replace all Tritium exit signs in MD81, 82, 83, 87 and MD88 aircraft.

The current “norm” for unpowered signs, Tritium is said to suffer a loss of luminosity over time, while STG’s patented PL technology maintains its high performance for the life of the aircraft.

STG Aerospace claim that SafTGlo TR signage significantly undercuts the costs of existing Tritium signs. Over the life of an aircraft the non-radioactive sign could save operators up to $4,000.

The company also reports that in common with all SafTGlo products, the new exit and progression signs need no in-service testing, maintenance, planned replacement or special disposal processes.

SafTGlo TR signs are also stated to be approximately 85 per cent lighter than equivalent Tritium signs. They are available in a variety of styles and sizes, are easy to install and, requiring no power source, can be re-located to match changing cabin configurations without losing any visibility.

Originally developed as a progression sign for class dividers and bulkheads, SafTGlo TR has been awarded a generic EASA STC certifying it for progression signage on all commercial aircraft.

The EASA approvals cover 65+ commercial aircraft types including the Airbus A380. STG Aerospace is also seeking FAA approvals.

For further details, please contact: Tel.: +44 (0) 1603 417722.

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