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Check "D" On B732  
User currently offlineHAWK21M From India, joined Jan 2001, 31875 posts, RR: 54
Posted (12 years 11 months 1 week 1 day 11 hours ago) and read 2708 times:

What would be the Checks carried out on a B737-200 during a Check D [18,000hrs],apart from those done on a Check C[3000hrs]Inspection.
I understand it would not be possible to describe the same here,But the Noticible Differences.I heard the Elevators come off to enable inspection of the Mount bolts.

Think of the brighter side!
3 replies: All unread, jump to last
User currently offlineDalmd88 From United States of America, joined Jul 2000, 2889 posts, RR: 14
Reply 1, posted (12 years 11 months 1 week 1 day 1 hour ago) and read 2635 times:

On a Delta HMV, which is akin to a 'D' check all flight control surfaces come off. Vertical stab comes off, and many times the Horizontal stab comes off. Vert stab connections get rebushed and new bolts. Interior gets removed including insulation for a complete internal structures inspection.

Most of the cabin door openings get beefed up if not previously done. These areas are prone to cracking. The fwd pressure bulkhead is commonly replaced due to cracks, and many times the aft cargo door gets reskinned. There tends to be heavy corrosion under the rear wet area(Galley&Lavs). Also in the aft bag bin and in the area aft of the bag bin we find a lot of corrosion requiring replacement of parts.

With a experienced crew of of about 160 guys working three shifts it can be done in about 28-30 days.

User currently offlineBeltwaybandit From United States of America, joined Mar 2003, 495 posts, RR: 0
Reply 2, posted (12 years 11 months 22 hours ago) and read 2496 times:

I think it really varies depending on the airline's maintenance program. Some airlines do not even have separate "D" checks, but instead have the "D" elements phased into their "C" checks.

User currently offlineFallingeese From Canada, joined Apr 2001, 2097 posts, RR: 16
Reply 3, posted (12 years 10 months 4 weeks 1 day 16 hours ago) and read 2427 times:

Another thing that airlines do when the "D" checks come up on older aircraft is phase them out, or return them to their leasor. "D" checks are costly and since they leave an aircraft out of service for quite awhile, costs build up further.

Mark McWhirter...Contrails Photography
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