MY re /IL, PROGRAM CUANGH ROUTING SLIP PCR/PCN #f — Ry ...
Transcript of MY re /IL, PROGRAM CUANGH ROUTING SLIP PCR/PCN #f — Ry ...
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MY re /IL, PROGRAM CUANGH ROUTING SLIP " PCR/PCN #f
— - Ry ” . ANOMALY # Lt €8 [] COLOSSUS 1A _ | LUMINARY 1 _
F] COLOSSUS 2 © | _ [J LuMINARY 1A a
L. COLOSSUS 2A © [ ]LUMINARY 4B. . ,
{> COLOSSUS : , see TS ’ Ti
(_] Mir Approved PCN ' [_] NASA Approved PCR a NASA Approved _ ; i «3 [| NASA Approved PCN. . Software Anomaly
A | ae ” / MIT Approved
“a Software Anomaly A. Coding |
ae Begin coding immediately . " | _
. J oo ACTION: “Dav Q Mew <t . . , Program Supervisor: Maru, tl. dd.
Oe Do not code until new GSOP material has — approved by the MIT Mission Design Review Board MIBEB) and distributed.
B. GSOP Preparation
Prepare GSOP revisions for MDRB _ _ _
consideration ACTION: __ es
C i Cl Technical Committee Meeting not required.
[_] Technical Committee Meeting(s) held on . . ; Attendees: ; as rs
Cc. KSC Testing and Checkout
Review for possible impact on KSC
testing and checkout . ACTION: ; eee =
D. Other Programs Affected
C) Review fr corresponding changes in i , . : . Ee . ® V —— ——— = RE CENT A
. ° os ACTION:
Special Instructions ; os
rr Project Manager Leet UV hry
Date Le a 64
(Rev 1, 2/69) a - ee ye
MUTATE SOFTWARE ANOMALY REPORT fs RCFORT WO
1.2 ORIGINATOR: ~ i 2 ORGANIZATION; 1.3 OATE: 1.4 ORIGINATOR ROGRAM LUMINARY
__R. COVELLI MIT/IL ores CONTROL NO. PROGRAM REVISION
1.5 DESCRIPTION OF ANOMALY: an
A hardware restart while R12 is repositioning the landing radar
antenna will prevent the antenna from achieving position 2, and
will cause 511 alarms every 2 seconds in P64. A software restart
in the same inteval will not prevent the antenna from achieving
position 2, but use of the radar will be inhibited. CONTINUED ON PAGE
1.6 DESCRIPTION OF RUN:
Restart testing .at Grumman.
CONTINUED ON PAGE
-MIT ANALYSIS -_ 2 CAUSE:
Landing radar repositioning routine is not restart protected.
. CONTINUED ON PAGE
22 RECOGNITION: TF hardware restart shortly after P64, 511 alarms will appear.
If caused by software restart, the only recognition is that NOLRREAD
flag is set, even though antenna is in position 2, CONTINUED ON PAGE 2.3 MISSION EFFECT: ;
Landing radar data will not be used from P64 on.
: CONTINUED ON PAGE 2.4 AVOIDANCE PROCEOURE:
None. CONTINUED ON PAGE
2.5 RECOVERY PROCEDURE: Move LR position switch to hover, then set’ RPCRTIME to POSMAX and
reset NOLRREAD flag and PSTHIGAT flag: tee CONTINUED ON PAGE 2 :
2.6 PROGRAM CORRECTION: } ~ . "2 |
: Set up restart group for HIGATJOB. i
- _ CONTINUED ON PAGE |
at RECOMMENDED DISPOSITION (Fix, Work-around, etc
Fix in LUMINARY 1B. : CONTINUED ON PAGE
28 RECOMMENDED RE-TESTING:
Restart run. . 20M ype SIGNATURE: af 2.10 DATE: i CONTINUED ON PAGE cleo rT, “UC Cea hae 1s &
3.1 NASA DIRECTION: . “TT &1 CLOSING ACTION TAKEN: /
}
CONTINUED ON PAGE CONTINUED ON PAGE
3,2 NASAIMSC SIGNATURE: 3.3 ORGANIZATION 4 DATE: lie SIGNATURE: 43 ORGANI pe
USC Form 1409 (Rev May 68)
PAGE I or 2
° s wa
1 ORIGINATOR:
R. COVELLI —_—_—_—
er
1.2 ORGANIZATION:
MIT/IL
2.5 Recovery Procedure:
V21N1E 3427E 37777E
V25N7E 107E
MSC Form 1409A (May 68) a
3000E OE
MIT/IL SOFTWARE ANOMALY ts DATE:
7/10/69
REPORT
CONTROL KO. ~ " ORIGINATOR
| L
PROGRAM _ LUMI
(MSCREPORT A. CtC~S*dY
PROGRRA REVISION 99 |
i.
Nye8_| NARY