DEC
3
‘99
12:OB
F’IOM
PW PROD
INTEG
TO
82823
46349
.
PIaft & wflilney 400 Main street East Hartford. CT 06108
30 November 1999 MI. Jim Hookey National Transportation Safety Board 490 L’Enfant Plaza East, SW Washington, DC 20594 Re: PW4060 Low Oil PressureEffect
Mr. Hookey, The following information is provided to answer the Safety Board’s question of 19 November 1999, in which Pratt gi Whitney was askedto adviseon the effect of ow oil pressure,defined as 70psi (+I- 2psi). for a period of 16 seconds,on a.PW05) en@: that was at idle power. The Type Certificate Data SheerE24NE identiBe;sthat the PW4060 engine mod5:1 as conforming to operation with a temporary intemxption of oil pressureassociatedwith negative ‘%,, operation for a period of 30 secondsmaximum. For your reference,a aq~y of the Type Certificate Data Sheetis attachedto this letter. By conforming with the 30 secondperiod of operation statedin the Type Certifi~xte C a1.a Sheet.operation of a PW4060 engine with low oil pressurefor a Period of 16 sec:onds should not have a significant effect on engine operation. Pleasecontact me should you have any further questions. Best Regards,
Flight Safety Investigations cc. M. L. Young - P&W
DEC
3
‘99
12:08
FROM
PW PROD
INTEG
TO 62823146349
PFGE.B82/887
U.S. DEPAJvmNT
OF TRNSCRTATDN
EDEWLAVlATUM#43WMRATW lYR CERTIFICATE DATA SHEET E2pN
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MODEL FEZ FEE Pw4152 RN4156 Pw415&4 Pw4ls8 W4lBO Pw4460 Pw4062 Fw4462 Pw4o6oc FW400 .
:
48.120' 4S.820 4Q.530’ 50250’
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DEC
3
‘99
12:09
FROM
PW PROD
INTEG
TO 62023146349
PFGE.B83/887
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DEC
3
‘99
12:09
FROM
PW PROD
INTEG
TO
82823146349
PFGE.884/887
MODEL mN4us8 RN4158 Pw4152 PW4052 9w4bGo Pw4160 Pw4480 9w4158 Pw4oscl PwuxoAJlw Pw413%Ahw?
AFFLIcAvoN ocT26.1383 ocT28.1383 APRot 1288 JUL 09.198? JLW 04.19B7 JLN M.1987 Jim 04,l~un Ju 23,1!187 FES 24,1,269 26.1989 02. ISQO MAY 00. 1989 JLJLOO. 1986 Juo9,lQ68 JUOQ. IQ88 OCT 13.1967 OCT 21.lQ88 ocT21. ma8 ocr21,198a APFt2Q,lQ@ 0C-r 12.1989 MARJO, lW0 Au0 08. w61 JAN 2l.lop2 JAN 21.1992 sEP24.lQs2 MNz63, logs I -ttO .UL 09.lQSQ I DELEiTliD
9wa82 MAYo4.19m 9w4omcJuL22.1991 9w4w.l FE824 13% l'W4256: AP9LlCATlON OCT 28.1983
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NOTE 1.
huxlh4ub1
F'ER~(ssmw
OPERATWO
WEEDS
FOFt ENG*(E
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9w4ocdmMowPW4152
pvw0lS 61F%J4156AIpw41S69W4166/ 9w~d6ol9w4482/Pw48so
-IALsosnNmEl~ IMm82
-* ..044 -0.450
-poswreN1.R9W WVM.-w
4.012 10300
4.012 lo&so
DEC
3
‘99
12:09
FROM
PW PROD
INTEG
TO
82823146349
625%1157% 600%/1112%
64tPClll84oF 61&31139%
660%31202% t32tPull5~ ..
/
53sooassoF
62sQc.IllspF
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65&X?@F ..
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OLPRESU?ELMATS:
NOTE).
DEC
3
‘99
12:09
FROM
PW PROD
INTEG
TO
02023146349
PfGE.006/007
DRollE (m-h)
I--ROTATKW cxw cow cow cow
SF’EEDRATIOTO
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NOTE 11.
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NOTE 13.
NOTE 14.
DEC
3
‘99
12:09
FROM
PW PROD
INTEG
TO 82023146349
MnE20. NDTE2l. IWTE 22. I
**
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