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**Welcome to sjap.nl, the website for 737 maintenance technicians.**

This site is developed to exchange maintenance experiences, tips, tricks, warnings, handy documents and other smart stuff to work easier, smarter and faster with the 737. If you know anything to prevent damage, to simplify a maintenance task, where to find any inspection hotspots, how to prevent errors or something not specifically mentioned in the manuals, send it in via this website to share it with other 737 technicians all over the world.

Any technical questions or requests? Go to the forum and ask other 737 technicians!

Put YOUR 737 experience & tips on this website !

Any comments on this website? Please read and sign the guestbook here.

This website has NO connection with The Boeing Company. All information on this website is NOT official, you are NOT allowed to use it for real 737 maintenance. You must always use the official maintenance manuals. You must read the disclaimer before you use any information from this website !

Find many maintenance tips and handy documents by navigating the ATA chapters on the left side of this page. The latest additions in any chapter on this site are listed in the right column.

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Latest News:

24 january 2012:

Upper strut fairing bonding jumpers in IPC.

11 january 2012:

Cockpit temp is not controllable.

29 december 2011:

Spoiler mixer no-back brake check tip.

15 december 2011:

Following Slat replacement Slat will not rig.

5 december 2011:

Thrust reverser stby fuse locks.

21 november 2011:

Flight spoilers will not raise to within limits with speed brake handle fully deployed.

7 november 2011:

Autobrake disarm light ON but AACU bite shows nil faults.

9 october 2011:

Cargo door handle stud missing and damaged housing. How to remove the stud? UPDATED !

21 september 2011:

4 new video's added !

-Tail comp view.

-APU bite check.

-Carbon brake install.

-nosewheel change.

15 september 2011:

New CFM56-7E exhaust and plug pictures.

31 august 2011:

Aircraft will not accept ground power, Hot Battery bus circuit breaker pops behind Captains seat when starting APU.

8 august 2011:

Cabin temp is very hot in back and very cold in front.

17 july 2011:

Autobrake disarm light illuminates upon touchdown without crew applying brakes.

4 july 2011:

Antiskid inop light on.

16 june 2011:

737 maintenance training RSS feed.

14 june 2011:

Anti-Skid light illuminated on takeoff, goes out at liftoff.

23 may 2011:

Nitrogen Generation System check valve broken.

12 may 2011:

Landing Gear handle will not go to up position until flaps are retracted.

2 may 2011:

Anti skid fail with Box 1-4 message during Bite. 737NG

17 april 2011:

Soaked insulation blankets causing ice on sidewall panels.

7 april 2011:

New SKY interior with LED lighting 737NG.

31 march 2011:

Elevator sluggish, sloppy, or heavy. 737 classic.

21 march 2011:

Transfer bus off light ON when eng #1 stopped, 737 classic.

10 march 2011:

ACMS data example of failing 390 F' PCV sensor.

24 february 2011:

CFM56-7 fire detection system troubleshooting file.

15 february 2011:

Yoke kicks when Autopilot engages.

15 february 2011:

Yaw damper disengages with Fault code 22-21006.

8 february 2011:

Balancing flight controls after a paint job. UPDATED !