What it approves
Provide Whittaker Controls P/N 320275 overpressure sensing shutoff valve as an alternate for McDonnell Douglas AUM 7043 type Environmental Control System (ECS) Overpressure Shutoff Valve.
What the certificate says
From the PDF’s text layer, without the form’s printed wording. Layout and order may differ; the PDF is the record.
lln1ltd ~lllltJ or5!mrrirQ Bqmrtmentof1:ransportation-;federalSllliationSldministmtion ~upplcmcntall[~pc(tcrtificatc ~ "SA2630SW~D .2(...,.."..w"1k4 ~U'.d./Q 1 ke7~ , \lhittnkerContro8, a unitofWhitta r corp.
12838SnticoyStreet NorthHollywood,California91605 tJ,.,j';"a/~u/-,~tf,...I0'cak~"" J£',(~ Jt,,/,.£ A22WE McDonnellDouglas DC-10-1O !it4c~0/'<..v..-r;;;;",,9-<,';j7~tfi'h~"'''ProvideWhittakerControlspIN320275 OYerpre8suraSen8insShut-offValveasan alternatetorMcDonnellDouglas pINAUM7043typeEnvironmsntalControlSystem(ECS)OVerpressureShut-off Valve.
Thisapproval,shouldnotbe incorporatedinanyaircraftof thisspecific modelonWhichotherapprovedmodificationsareincorporatadunlessit is determinedthattheinterrelationshipbetweenthischangeandanyof those previouslyincorroratedapprovedmodificationswillnotintroduceanyadverse effectupontheairworthinessof theaircraft.
r;,-- ./Aij ..(''''".;.rfr.•..u~' ...•..I,nd --.lh'/AuI0m..6n';?.L!nk~;€h-..kJ///thfifld~4-/0'1"' A/yW'O-?¥'£JJhlaA'bnLaiw~~£ ...umU:/Au4'-- AY'~..,4"""'/,,,.,,,6-4AY'4<k4'<>"A"""k~A~d'ak";',d/",.,.,m;'".-<,.;/n6l~.d7./k,sUnMu;i/""I",,,;,t'./h'" %&,,.,,ISit,,,,/,<..v d6ru:n.4/""/':un ..
July21,1977 November14,1979 ,q;~~~~-.
~~ .on P.Watson Chief, Engineering and MaDnhctllrina Branch (Till, ) Any alteration. of this UTlijicatt is punishable by a .fineof not exceeding SI,OOO,or imprisonment not exceeding 3 years, or both.
This urtijicate may be transfn-rtd in accordancewith FAR 21.47.
fAA FOIMaII 0-2110-68\
ADs that name this STC · 0
An AD can apply because an STC is installed, or mention one in its text.
Approved models · 1
| Make | Model | Data sheet |
|---|---|---|
| McDonnell Douglas Corporation | DC-10-10 | A22WE |