DCS F-18 - Emergency of the Day

[VBF-12 Gosling]

DCS F-18 - Emergency of the Day 60 - IFFAI Caution on DDI

IFFAI

Information.

Cause

• Some interrogator operations may not function.

[VBF-12 Gosling]

DCS F-18 - Emergency of the Day 61 - IFF OVRHT Caution on DDI

IFF OVRHT

1. IFF ... ... ... ... ... ... ... ... ... ... ... OFF (if practical)

Cause

• IFF overheat detected.

[VBF-12 Gosling]

DCS F-18 - Emergency of the Day 62 - L or R IN TEMP Caution on DDI

L IN TEMP &/or R IN TEMP

Audio - “Engine Left, Engine Left” or “Engine Right, Engine Right”

SINGLE ENGINE FLAMEOUT
* 1. Throttle affected engine ... ... ... ... ... ... ... ... ... ... ... ... IDLE
- 2. Land as soon as practical.
- 3. Consider HALF flap approach for landing.

Cause

• Designated engine inlet temperature out of limits.

[VBF-12 Gosling]

DCS F-18 - Emergency of the Day 63 - INLET ICE Caution on DDI

INLET ICE

AOA = Angle of Attack
LEX = Leading Edge Extension
LEF = Leading Edge Flap
N2 = Turbine Shaft Revolutions per Minute
FOD = Foreign Object Debris
IGV - Inlet Guide Vanes

1. ENG ANTI ICE switch ... ... ... ... ... ... ... ... ON
2. PITOT ANTI ICE ... ... ... ... ... ... ... ... ... ... ON

NO ICE VISIBLE ON LEFS -
3. Airspeed ... ... ... ... ... ... ... ... ... ... ... ... ... Increase until INLET TEMP is at least +5 degrees C (10 degrees preferred) on ENG format (if possible)
4. AOA ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... Maintain less than 6 degrees (if possible) to prevent ice accumulation on underside of LEX
5. Climb or descend out of icing danger zone. (>25,000 feet, or below freezing level)

When clear of icing conditions and caution removed -
6. ENG ANTI ICE ... ... ... ... ... ... ... ... ... ... OFF

ICE VISIBLE ON LEFS -
3. Throttles ... ... ... ... ... ... ... ... ... ... Reduce below 80% N2, (if possible). Avoid throttle transitents above 90% N2.
4. Airspeed ... ... ... ... ... ... ... ... ... ... ... ... ... Maintain above 250 kts.
5. AOA ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... Maintain less than 6 degrees (if possible) to prevent ice accumulation on underside of LEX.
6. Avoid abrupt manoeuvres and bank angle over 20 degrees.
7. Descend below the freezing level.

For landing in icing conditions =
8. WINDSHIELD switch ... ... ... ... ... ... ... ... ... ... ANTI ICE or RAIN (as required).
9. Reduce airspeed and lower the landing gear at the last possible moment (minimise ice accumulation on the gear).

If a missed approach is necessary -
10. Slowly advance throttles to the minimum power required for a safe wave off.
11. Raise landing gear and flaps as soon as possible.

Cause

• Engine inlet icing conditions detected.

Remarks
The INLET ICE caution is design ed to come on when 0.025 inch of ice has accumulated on the inlet ice detector, located in the left intake. Any delay in activating the engine anti-I’ve system can result in ice accumulating rapidly on teh IGVs and shedding into the engine when the system is turned on. Ice accumulation on LEFs is similar to the inlet lip and can serve as an indication of how much ice may be on the inlet. As little as 0.5 inch of ice ingested by tehengine from the inlet lip can result in compressor stalls and major FOD.

With ice clearly visible on the LEFs, reducing throttle settings below 80% N2 rpm while descending below the freezing level should generate sufficient inlet spillage to shed inlet ice outside the inlet and not into the engine. Similarly, avoiding throttle transients above 90% N2 rpm, abrupt manoeuvres, and bank angles ove 20 degrees should help prevent ice from detaching from the inlet lip and being ingested by the engines.

With no ice visible on teh aircraft, an INLET TEMP of at least +5 degrees C should provide sufficient aerodynamic heating to prevent ice accumulation on the LEFs and inlet lips.

[VBF-12 Gosling]

DCS F-18 - Emergency of the Day 63 - INS ATT Caution on DDI

INS ATT

INS = Inertial Navigation System
ATT = Attitude
HUD = Head Up Display
GPS = Global Positioning System
EGI = Embedded INS / GPS
IFA = Inflight Alignment
MSP Code = Maintenance Status Panel Code - Readable on the IFEI
PROC = Processor
CH = Channel
FCS = Flight Control System
FCC = Flight Control Computer
IFEI = Integrated Fuel / Engine Indicator

1. ATT / ATTD switch ... ... ... ... ... ... ... ... ... STBY
2. Verify HUD pitch ladder coincides with standby attitude reference indicator
3. Attempt an in-flight alignment

Remarks
HUD attitude supplied by the standby attitude reference indicator.
“ ^-W^- “ wings symbol replaces the “ O “ vector symbol on the HUD.
GPS or EGI GPS function still operates.
MSP codes 02F or 061 indicate that NAV data is frozen and NAV data provided to the HUD is not reliable. IFA is no longer possible.
If an INS ATT caution is set or the ATT switch is placed to STBY, Xs will appear in CH 1/3 of the PROC row of the FCS Page indicating FCCs will no longer use INS data. There is no significant degradation to flying qualities, departure resistance or roll performance with these failure indications.

[VBF-12 Gosling]

DCS F-18 - Emergency of the Day 64 - INS DEGD Caution on DDI

INS DEGD

INS = Inertial Navigation System
ATT = Attitude
BIT = Built In Test
ADC = Air Data Computer

GROUND
1. Secure and realign INS.

IN FLIGHT if INS information is incorrect -
1. ATT / ATTD switch ... ... ... ... ... ... ... ... ... STBY
2. Position keeping source ... ... ... ... ... ... ... ADC
3. Perform in-flight alignment

Cause

• Failure detected during periodic INS BIT.

[VBF-12 Gosling]

DCS F-18 - Emergency of the Day 65 - INS VEL Caution on DDI

INS VEL

INS = Inertial Navigation System
ADC = AIr Data Computer
HUD = Head Up Display
FOD = Foreign Object Debris

1. Crosscheck HUD velocity vector, HUD digital vertical velocity readout and standby rate of climb indicator.

Cause

• INS and ADC vertical velocities do not agree.

[VBF-12 Gosling]

DCS F-18 - Emergency of the Day 66 - LADDER Caution on DDI

LADDER

FOD = Foreign Object Debris.

IN FLIGHT
1. Reduce airspeed to the minimum practical.
2. Get visual inspection (if practical).
3. Consider shutting off left engine to prevent engine FOD.
4. Land as soon as practical.

Cause

• Boarding ladder unlocked.

Remarks
May FOD left engine.

[VBF-12 Gosling]

DCS F-18 - Emergency of the Day 67 - MC 1 Caution on DDI

MC 1

EGI = Embedded INS / GPS
GPS = Global Positioning System
MC = Mission Computer
FCS = Flight Control System
INS = Inertial Navigation System
MUX = Multiplex
HYD = Hydraaulic System

1. MC switch ... ... ... ... ... ... ... ... ... CYCLE to 1 OFF then NORM

If caution remains or reappears -
2. Use no more than 1/2 lateral stick with tanks or A/G stores on the wings. Reduce acceleration below 7.5 g above 32,357 pounds gross weight or if unsymmetrical (rolling).
3. Land as soon as practical.

Cause

• Mission computer 1 failed.

Remarks
Only cautions available are:

• AUTO PILOT
• MC 1
• HYD 1A, HYD 1B, HYD 2A, HYD 2B

GPS or EGI GPS function inoperable.
G-limiter and Rol- limiter functions disabled.
The prescience of the MC 1 caution also indicates that the FCS will stop using INS provided data across the MUX. There is no significant degradation to flying qualities, departure resistance or rolling performance with these failure indications.

[VBF-12 Gosling]

DCS F-18 - Emergency of the Day 68 - MC 2 Caution on DDI

MC 2

1. MC switch ... ... ... ... ... ... ... ... ... CYCLE to 2 OFF then NORM

Cause

• Mission computer 2 failed.

Remarks
Most weapon functionality lost.

[VBF-12 Gosling]

DCS F-18 - Emergency of the Day 69 - MC CONFIG Caution on DDI

MC CONFIG

1. Do not takeoff.

Cause

• OPF loaded into either MC is incorrect.

[VBF-12 Gosling]

DCS F-18 - Emergency of the Day 70 - MDL LOAD Caution on DDI

MDL LOAD

Information.

Cause

• MDL to MC loading failure.

[VBF-12 Gosling]

DCS F-18 - Emergency of the Day 71 - MIDS OVRHT Caution on DDI

MIDS OVRHT

Information.

Cause

• MIDS overheat condition.

[VBF-12 Gosling]

DCS F-18 - Emergency of the Day 72 - MU LOAD Caution on DDI

MU LOAD

MU = Memory Unit
AMU = Aircraft Memory Unit - PC Card Slots
MNTCD = Maintenance PC Card
MSNCD = Mission PC Card
AVMUX = Avionics Multiplex

1. Verify mission / maintenance cards installed in proper AMU slot and AMU door closed.
2. If accompanied by a MNTCD or MSNCD advisory, refer to MNTCD or MSNCD advisory.

Cause

• MU not communicating on AVMUX.

[VBF-12 Gosling]

DCS F-18 - Emergency of the Day 73 - NAV FAIL Caution on DDI

NAV FAIL

INS = Inertial Navigation System
GPS = Global Positioning System
GND = Ground
CV = Carrier
IFA = In Flight Alignment

GROUND
1. INS knob ... ... ... ... ... ... ... ... ... ... ... ... ... ... OFF then realign (GND, CV, or IFA)

IN FLIGHT
1. Use standby instruments for altitude / airspeed / vertical velocity.
2. Refer to In-flight Alignment.

Cause

• Indicates functional failures of the INS, GPS, and air data functions.