Roy Smith wrote in
:

In article ,
Bertie the Bunyip wrote:

Is that the way the AD is written? Not specific to type? The 400s
were very varied machines and I doubt the spars were common to all of
them..

Of course it's specific to type. The summary talks about "Cessna
Aircraft Company (Cessna) 100, 200, 300, and 400 series airplanes",
but when you read further down, you get to:

Applicability: All serial numbers of Models 150, 150A, 150B, 150C,
150D, 150E, 150F, 150G, 150H, 150J, 150K, 150L, 150M, A150K, A150L,
A150M, F150F, F150G, F150H, F150J, F150K, F150L, F150M, FA150K,
FA150L, FRA150L, FRA150M, 152, A152, F152, FA152, 172, 172A, 172B,
172C, 172D, 172E, 172F, 172G, 172H, 172I, 172K, 172L, 172M, 172N,
172P, 172Q, 172RG, FP172, F172D, F172E, F172F, F172G, F172H, F172K,
F172L, F172M, F172N, F172P, FR172E, FR172F, FR172G, FR172H, FR172J,
FR172K, P172D, R172E(T41), R172F(T41), R172G(T41), R172H(T41), R172J,
R172K, 175, 175A, 175B, 175C, 177, 177A, 177B, 177RG, F177RG, 180,
180A, 180B, 180C, 180D, 180E, 180F, 180G, 180H, 180J, 180K, 182, 182A,
182B, 182C, 182D, 182E, 182F, 182G, 182H, 182J, 182K, 182L, 182M,
182N, 182P, 182Q, 182R, F182P, F182Q, FR182, T182, R182, TR182, 185,
185A, 185B, 185C, 185D, 185E, A185E, A185F, 188, 188A, 188B, A188,
A188A, A188B, T188C, 206, P206A, P206B, P206C, P206D, P206E, TU206A,
TU206B, TU206C, TU206D, TU206E, TU206F, TU206G, TP206, TP206A, TP206B,
TP206C, TP206D, TP206E, U206, U206A, U206B, U206C, U206D, U206E,
U206F, U206G, 207, 207A, T207, T207A, 208, 208B, 210, 210A, 210B,
210C, 210D, 210E, 210F, 210G, 210H, 210J, 210K, 210L, 210M, 210N,
210R, T210F, P210N, P210R, 210-5 (205), 210-5A (205A), T303, 310P,
310Q, 310R, T310P, 310Q, 310R, 335, 336, 337, 337A, 337B, 337C, 337D,
337E, 337F, 337G, 337H, F337E, F337F, F337G, F337H, FT337E, FT337F,
FT337GP, FT337HP, FTB337, T337B, T337C, T337D, T337E, T337F, T337G,
T337H, T337H-SP, M337B, P337H, 340, 340A, 401, 401A, 401B, 402, 402A,
402B, 402C, 404, F406, 411, 411A, 414, 414A, 421, 421A, 421B, 421C,
and 425 airplanes, certificated in any category.



Hey, they left out the one he made in 1911!

but seriously, what the hell is that AD for? It;'s a pretty broad AD..


Bertie