Stby attitude indicator integral lighting block replacement. 737-6/7/8/900

This article is issued to bring to your attention that in case the integral lighting of the Standby Attitude Indicator is inoperative, you have the possibility to replace the lighting block.

The history of Standby Attitude Indicator removals show that the indicators were replaced several times to replace the lighting block in a repair shop. This is not necessary because there is a removal/installation procedure in the AMM to replace the lighting block, refer to AMM 34-24-01. Costs will be saved by performing the removal/installation on the a/c.

The only discrepancy is that the lighting block is stowed in the Spare Bulb Stowage Box but that it is not listed in the IPC. A supplemental IPC may be added to the official documents by your company. The p/n of the lightning block is H342AA55. See picture below.  Tip supplied by Marc.

> FOR INFORMATION ONLY. UNCONTROLLED DATA !. uses cookies to use the content and ads for functions to analyze website-traffic. also shares information about your usage on this site with our partners for social media, ads and analysis. By continuing to use this site, you agree to the use of cookies. More information

The cookie settings on this website are set to "allow cookies" to give you the best browsing experience possible. If you continue to use this website without changing your cookie settings or you click "Accept" below then you are consenting to this.

More information about our privacy policy and cookies, see the Privacy Policy & Cookies page.

Click here to read more about how Google uses data when you use our partners' sites or apps.