STC SE3PC

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201 Aokea Street Honolulu,Hawaii96819 <N./~.Ld...,/IA~,>c~a,:y,.<~i-v~Ih~/~.,A6~4;jn,;:;-'~../A",;:/;;~L't;',?/blV'n~~(,/H'fl'kd.£<;;i-"~4~~~-"".n..J,.N/u/~yynf;;;4~~n4 NlJ c_Clvllfiir d'J¥'jf-I" .A'.l.J..JPU~H/.A"H',-n/dnutJ ..a#Au.,Uv"Ih<'n~.J.J ,1V?'UN'uunLi-A/' J#"/ 13 0'lk.~~~~~~ ~:YHk.4";;n.1-;

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E-294-5 RoIIs-Royce Gypsy Queen Model 30 MK2 Installationof AC typeLA47 sparkplugs as replacementsfor AC type SR47P sparkplugs.

LIMITATIONOF APPLICABILITY: This approvalshouldnot be extendedto other specificenginesof thismodel on which other previouslyapprovedmodifications are Incorporated,unless It Is determinedthat the interrelationshipbetween this changeand any other previouslyapprovedmodificationswill introduceno adverseeffectupon the airworthinessof that engine.

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12 December1969 6 February1970 FAA FORM8110-2 (1-66) .9JJ'/A'~('f:1f~~"~-001'6 .f;'M~u"uJI/¥,It" Keith D. k;Vh'I~,";;

Keith D. Anderson(S(.nalu,,!

Chief,Engineering& ManufacturingBranch FlightStandardsDivision (1itfo AT!>'alteration of this celtijica/e ispunishable '-!>'afme of not exceeding SI,OOO,01 imprisonment no/ exceeding3 ]ears, orboth.

"/his urlifical~ m(~}'be l,a1l.J-fr"edi1lacw,dunu with F..tR 2J.47.

00.52-6.57-6000